Sorry, you need to enable JavaScript to visit this website.
RIT Photonics

Virtual Photonics for Quantum 2

 

 

Introduction

The Photonics for Quantum 2 Workshop (PfQ2) convenes international experts, industry, and students in quantum photonic information science and technology in support of efforts to fulfill the promise of the Quantum 2.0 Revolution.

The workshop features invited talks on quantum topics spanning applications, experiments, quantum photonic integrated circuits, materials, integration between dissimilar material systems, devices, and concepts to support a national quantum foundry. The meeting will develop priorities for new curriculum development and research on student learning that aligns with contemporary quantum topics. Also added to this year’s agenda is the Women in Quantum: Increasing Diversity in Industry and Academia Panel. This unique event will create a community among women in this area and increase the outreach efforts of future women researchers.

PfQ2 is free for attendees. The workshop is partially funded by a National Science Foundation grant that supports an RIT-led team to propose an NSF Quantum Leap Challenge Institute. It is also funded by RIT’s Future Photon Initiative and corporate sponsors.

Due to generous contributions from RIT and our sponsors, there is no registration fee.

For further information about this workshop, email Robyn Rosechandler (ritphotonics@rit.edu).

Learn more about the previous PfQ workshop, Phototonics for Quantum 1.

Program

All talks are at 1 pm (EDT), unless otherwise noted.
Links to previous talks are now available in the drop-down information for each talk. 

June 23, Gregory Fuchs (Cornell U), Engineering Coherent Spin and Orbital Transitions of Diamond Nitrogen-Vacancy Centers Using a Mechanical Resonator

Abstract

I will describe our experiments to drive spin and orbital resonance of single diamond nitrogen-vacancy (NV) centers using the gigahertz-frequency strain oscillations produced within a diamond acoustic resonator. Strain-based coupling between a resonator and a defect center takes advantage of intrinsic and reproducible coupling mechanisms while maintaining compatibility with conventional magnetic and optical techniques, thus providing new functionality for quantum-enhanced sensing and quantum information processing. Using a spin-strain interaction at room temperature, we demonstrate coherent spin control and spin coherence protection. At cryogenic temperatures, we use orbital-strain interactions driven by a diamond acoustic resonator to study multi-phonon orbital resonance of a single NV center. Additionally, I’ll describe our efforts to enhance electron-phonon coupling by engineering mechanical resonators with small modal volumes based on a semi-confocal acoustic cavity.

Speaker Bio

Fuchs earned his Ph.D. in Applied Physics from Cornell University in 2007. Following a postdoctoral position at the University of California, Santa Barbara, he returned to the Cornell School of Applied and Engineering Physics in 2011. Half of Fuchs’s research group is focused on the interactions between spins, photons, and phonons in color centers for quantum information science. The other half is focused on nanomagnetism and spintronics. For this research, Fuchs pioneered the time-resolved magneto-thermal microscope to image spins and their dynamics in ferromagnetic or antiferromagnetic devices

June 24, 12:45 pm, Sponsor: ID Quantique

Abstract

ID Quantique provides photon counting solutions for the visible and near infrared regions of the optical spectrum, timing electronics and photonic sensing solutions for both industrial and research applications in various domains such as Quantum Physics, Quantum Communication, BioScience, Material Science, and Defense and Security. Rik will discuss IDQ’s latest developments in single photon detectors based on superconducting nanowires (SNSPD) and avalanche diodes (SPAD), and single photon electronics.

 

Website: https://www.idquantique.com/

 

June 24, Jacques Carolan (Niels Bohr Institute - U. of Copenhagen), Quantum Photonic Processors to Accelerate Machine Learning

Abstract

The generation and manipulation of quantum states of light has historically played a critical role in the development of quantum information science: from the first violation of Bell’s inequality to the more recent development of near-term quantum algorithms such as the variational quantum eigensolver. In this talk, I present a new frontier for photons at the intersection of quantum mechanics and machine learning. I will first provide a short introduction to the field of quantum photonics, then demonstrate how quantum photonic processors can accelerate both quantum and classical machine learning. Finally, I show how optimization techniques can enhance large-scale quantum control and provide a new path towards efficient verification of near-term quantum processors.

Speaker Bio

Jacques Carolan received his MSci in Physics and Philosophy from the University of Bristol in 2011 where he then joined the Centre for Quantum Photonics to earn a PhD in 2015.  He joined the Quantum Photonics Laboratory at MIT as a Postdoctoral Fellow in 2016 and after receiving a Marie Skłodowska-Curie Global Fellowship, joined the Quantum Photonics Group at the Niels Bohr Institute in 2019.  He was a 2014 EPSRC ICT Pioneer, attended the 66th Lindau Nobel Laureates Meeting in 2016 on behalf of the Royal Society and won an Institute of Physics QEP thesis Commendation and UOB Faculty of Science Commendation for his thesis work.

June 25, 12:55 pm, Sponsor: Quantum Design

Abstract

Quantum Design, Inc. (QD) is the manufacturing arm of Quantum Design International (QDI) and has been located in San Diego, California since its inception in 1982. QD is the leading commercial source for automated materials characterization systems incorporating superconducting technology. These systems offer a variety of measurement capabilities and are in widespread use in the fields of physics, chemistry, biotechnology, materials science and nanotechnology.

 

Quantum Designs Virtual Exhibit: https://qdusa.com/virtual_booth/2020_QD_RIT_Photonics.html

 

June 25, Andrew Weiner (Purdue U), High Dimensional Frequency Bin Photonic Entanglement

Abstract

Entanglement and encoding in discrete frequency bins – essentially a quantum analogue of wavelength-division multiplexing – represents a relatively new degree of freedom for quantum information with photons.  In this talk I discuss biphoton frequency combs, generated either by spontaneous four-wave mixing (SFWM) from on-chip microring resonators or by spectral filtering of spontaneous parametric down conversion (SPDC) in second order nonlinear crystals.  Potential advantages include generation of high dimensional units of quantum information (qudits), which can carry multiple qubits per photon, robust transmission over fiber, and frequency parallelism and routing.  Since the initial experiments 2-3 years ago, frequency bin quantum photonics has been advancing rapidly [1, 2].  In this talk I will give special attention to high dimensional entanglement. One of the interesting possibilities is to perform mixing of multiple frequency bins in a single operation, going well beyond nearest neighbor “interactions.”  In this vein I will comment on two recent experiments in our lab, each involving more than a dozen frequency bins.  One experiment focuses on quantum walks of frequency entangled photon pairs, in which the input state can be coherently steered toward either correlated or anticorrelated quantum walk behavior [3].  In the second case, we show that high-dimensional frequency bin entanglement enables measurement of signal-idler delay at the few picosecond level, ~30× faster than the single photon detectors employed [4].

 

[1]          M. Kues, C. Reimer, J. M. Lukens, W. J. Munro, A. M. Weiner, D. J. Moss and R. Morandotti, "Quantum optical microcombs," Nature Photonics, vol. 13, no. 3, pp. 170-179, 2019/03/01 2019.

 

[2]          H.-H. Lu, A. M. Weiner, P. Lougovski and J. M. Lukens, "Quantum Information Processing With Frequency-Comb Qudits," IEEE Photonics Technology Letters, vol. 31, no. 23, pp. 1858-1861, 2019.

[3]          P. Imany, N. B. Lingaraju, M. S. Alshaykh, D. E. Leaird and A. M. Weiner, "Probing quantum walks through coherent control of high-dimensionally entangled photons," arXiv preprint arXiv:1911.04369, 2019.

[4]          S. Seshadri, P. Imany, N. B. Lingaraju, D. E. Leaird and A. M. Weiner, "Precision measurement of optical fiber delays with a quantum frequency comb (FM1C.5)," presented at the Conference on Lasers & Electro-Optics, 11-May-2020, 2020.

Speaker Bio

Andrew Weiner is the Scifres Family Distinguished Professor of Electrical and Computer Engineering at Purdue University. After Prof. Weiner earned his Sc.D. in electrical engineering in 1984 from the Massachusetts Institute of Technology, he joined Bellcore, at that time a premier telecommunications industry research organization, first as Member of Technical Staff and later as Manager of Ultrafast Optics and Optical Signal Processing Research. He joined Purdue as Professor in 1992, and has since graduated 43 Ph.D. students. Prof. Weiner’s research focuses on ultrafast optics, with an emphasis on processing of extremely high speed lightwave signals and ultrabroadband radio-frequency signals. He is especially well known for his pioneering work on programmable generation of arbitrary ultrashort pulse waveforms, which has found application both in fiber optic networks and in ultrafast optical science laboratories around the world. His recent research focuses on frequency comb generation from microresonators and manipulation of broadband entangled photons. Prof. Weiner is author of the textbook Ultrafast Optics, has published over 350 journal articles and 600 conference papers, and served a six year term as Editor-in-Chief of Optics Express. He is a member of the National Academy of Engineering and National Academy of Inventors, a past Department of Defense National Security Science and Engineering Faculty Fellow, and recipient of numerous awards, including the OSA Wood Prize, the IEEE Photonics Society Quantum Electronics Award, and Purdue University’s Herbert Newby McCoy Award for outstanding contributions to the natural sciences.

June 25, 1:50 pm, Poster: Svetlana Lukishova, U. of Rochester, Purity of Single-Photon Emission with Silver Patch Nanoantennas: Spontaneous Photoluminescence Spikes Up to 400-900 Kcounts/S

Abstract

From all types of plasmonic and photonics nanostructures developed for room-temperature single-photon source applications the highest Purcell factor with increasing emitter radiative decay rate and enhancement in the total fluorescence intensity were obtained with metal plasmonic patch (gap) nanoantennas. We report on sporadic appearance of ultrabright intensity spikes (up to ~400─900 kcounts/s) in time traces of photoluminescence from 100-nm silver nanocubes (widely used in patch plasmonic nanoantennas) under 532 or 633 nm laser excitation. Possible mechanisms of spikes are discussed.

June 29, Jelena Vučković (Stanford U), Connecting and Scaling Semiconductor Quantum Photonic Systems

Abstract

At the core of most quantum technologies, including quantum networks, quantum computers and quantum simulators, is the development of homogeneous, long lived qubits with excellent optical interfaces, and the development of high efficiency and robust optical interconnects for such qubits. To achieve this goal, we have been studying color centers in diamond (SiV, SnV) and silicon carbide (VSi in 4H SiC), in combination with novel fabrication techniques, and relying on the powerful and fast photonics inverse design approach that we have developed. We illustrate this with a number of demonstrated quantum photonic devices and circuits in diamond and in SiC.

Speaker Bio

Jelena Vuckovic is a Jensen Huang Professor in Global Leadership in the School of Engineering, a Professor of Electrical Engineering and by courtesy of Applied Physics at Stanford, where she leads the Nanoscale and Quantum Photonics Lab. She is also a director of Q-FARM, Stanford-SLAC Quantum Science and Engineering Initiative, and is affiliated with Ginzton Lab, PULSE Institute, SIMES Institute, Stanford Photonics Research Center (SPRC), SystemX Alliance, and Bio-X at Stanford.

Upon receiving her PhD degree from the California Institute of Technology (Caltech) in 2002, she worked as a postdoctoral scholar at Stanford. In 2003, she joined the Stanford Electrical Engineering Faculty, first as an assistant professor (until 2008), then an associate professor (2008-2013), and finally as a professor of electrical engineering (since 2013). She has also held visiting positions at the Max Planck Institute for Quantum Optics (MPQ) in Munich, Germany (2019), at the Institute for Advanced Studies of the Technical University in Munich, Germany (2013-2018), and at the Institute for Physics of the Humboldt University in Berlin, Germany (2010-2013).

Vuckovic has received many awards including the James Gordon Memorial Speakership from the OSA (2020), the IET A. F. Harvey Engineering Research Prize (2019), Distinguished Scholar of the Max Planck Institute for Quantum Optics - MPQ (2019), Hans Fischer Senior Fellowship from the Institute for Advanced Studies in Munich (2013), Humboldt Prize (2010), Marko V. Jaric award for outstanding achievements in physics (2012), DARPA Young Faculty Award (2008), Chambers Faculty Scholarship at Stanford (2008), Presidential Early Career Award for Scientists and Engineers (PECASE in 2007), Office of Naval Research Young Investigator Award (2006), Okawa Foundation Research Grant (2006), and Frederic E. Terman Fellowship at Stanford (2003).

 She is a Fellow of the American Physical Society (APS), of the Optical Society of America (OSA), and of the Institute of Electronics and Electrical Engineers (IEEE).

Vuckovic is a member of the scientific advisory board of the Max Planck Institute for Quantum Optics - MPQ (in Munich, Germany), of the Ferdinand Braun Institute (in Berlin, Germany), an advisory board member of the National Science Foundation (NSF) Engineering Directorate, and a board member of SystemX at Stanford. Currently, she is also an Associate Editor of ACS Photonics, and a member of the editorial advisory board of Nature Quantum Information and APL Photonics.

 

June 29, 1:50pm, Poster: Viacheslav Semenenko (U. at Buffalo), Analytical Model for s-type SNOM of 2D Conducting Materials

Abstract

We present an analytical calculation of plasmon excitation in a 2D conducting material by a thin horizontally arranged polarized cylindrical tip. This minimalistic model is used as a core for simulation of scattering type surface near-field microscopy (s-SNOM) of 2D materials. Due to its simplicity, it provides better understanding of s-SNOM operation and measurements it's able to perform.

June 30, Hamed Majedi (U of Waterloo), Nonlinear Quantum Photonics in Graphene/Silicon Heterostructures

Abstract

Nonlinear optics, a research area that is emerged after the invention of laser in 1960, continues to be widely explored with a broad range of applications from optical communication and spectroscopy to quantum photonics. A long-standing goal is to realize nonlinear optical structures at progressively low optical power down to quantum regime and electrically-tunable, which is difficult given the small nonlinear coefficients of bulk materials. Currently, there arises a new type of 2D nonlinear optical materials with fascinating properties such as broadband saturable absorption and ultrafast carrier dynamics with a large nonlinear refractive index. Graphene with the ease of fabrication, compatibility with CMOS technology and silicon photonics is a strong contender for a new class of optoelectronic and photonic devices and circuits.

In this talk, I will first review graphene’s relevant physics for its application in nonlinear optics complemented by our theoretical work on the quantum treatment of its nonlinear Kerr coefficient. This includes how the Kerr coefficient can be electrically-tuned for device operation as well as new physics of anomalous optical saturation. I will then present our systematic experimental investigation of measuring Kerr coefficient through optical self modulation effect, with an emphasis on its wavelength dependence and temporal evolution via combined z-scan and pump-probe measurements. Finally, I will present our experimental work on ultrafast optical modulation/switching and bistability in a hybrid graphene-silicon photonic crystal nanocavities providing a world-record of modulation/switching speed and depth with the lowest optical power for an integrated nonlinear silicon-based photonic devices.

Speaker Bio

Hamed was born in Tehran, Iran and did his BSc. in Electrical Engineering (Major in Telecommunications) at K. N. Toosi University of Technology, Tehran, Iran. He received his MSc. in Electrical Engineering (Major in Electromagnetic Fields & Waves) from AmirKabir University of Technology with honors. In 1998, he joined the Department of Electrical & Computer (E&CE) at the University of Waterloo and obtained his PhD with distinction on December 2001. After his PhD, he spent 10 months as a postdoctoral fellow in Department of E&CE, focusing on superconducting single photon detectors and THz photonic devices and then moved to Institute for Quantum Computing (IQC) as a Research Assistant Professor where he established Integrated Quantum Optoelectronics Lab (IQOL). He becomes an Assistant Professor at Department of E&CE in 2005, and Department of Physics & Astronomy at University of Waterloo. He was promoted with tenure to the rank of Associate Professor in 2010 and to the rank of full professor in 2015. In 2012, he spent his sabbatical at Harvard School of Engineering and Applied Sciences. He offered graduate courses in Quantum Electronics & Photonics and Modern Optics in applied physics program and Applied Quantum Mechanics for Undergrad students at Harvard University. He has held a visiting associate professor position at Harvard University till end of 2013. He has been a faculty member at IQC from 2005 to 2014. He has been the primary guest editor in special issue of "Superconducting Quantum Electronics & Photonics" in IEEE Journal of Selected topics in Quantum Electronics for March/April 2015 issue. He is elected to be in the editorial board of Nature Scientific Report from 2015. In 2018, he has received an IDEX fellowship from Universite de Bordeaux in France and spend summer 2018 to conduct a research on graphene’s magnetophotonics at Bordeaux Institut d’Optique. He is an affiliate member of Perimeter Institute for Theoretical Physics (PI) and Waterloo Institute for Nanotechnology. He is a senior member of IEEE and APS.

July 1, 12 pm, Amr Helmy (U of Toronto), Advances in Monolithic Quantum Photonics for Sensing

Abstract

This talk will describe a technology that enables the utilization of second order nonlinearities, Chi(2) in monolithic semiconductors to be used as an optimal tool box for quantum optics. This approach uses dispersion engineering in Bragg reflection waveguides to harness parametric processes to produce non classical sources through down conversion [1-4]. These can also be realized in conjunction with concomitant dispersion and birefringence engineering in active devices such as semiconductor diode lasers [5-9]. On the classical front, the technology enables novel coherent light sources using frequency conversion in a self pumped chip-form factor.

Novel sources for non-classical states of photons in this monolithic platform will be reviewed. These chip-based sources can afford the integration of other devices such as laser pump sources, power and polarization splitters, gates, cavities and much more. This platform essentially offers the capability of transferring current quantum optical setups from the optical table in a lab into a practical realm and even the market place.

Also in this talk, some of the application that utilize the aforementioned sources will be discussed, including monolithic photonics architectures that enable deterministic splitting of entangled states of light will be discussed. In addition, sources for target detection and sensing protocols such as quantum illumination in integrated architectures will be also presented. The attributes of this platform offer unique opportunities in metrology applications where size, power, form-factor and space qualification are important factors.

This talk will describe a technology that enables the utilization of second order nonlinearities, Chi(2) in monolithic semiconductors to be used as an optimal tool box for quantum optics. This approach uses dispersion engineering in Bragg reflection waveguides to harness parametric processes to produce non classical sources through down conversion [1-4]. These can also be realized in conjunction with concomitant dispersion and birefringence engineering in active devices such as semiconductor diode lasers [5-9]. On the classical front, the technology enables novel coherent light sources using frequency conversion in a self pumped chip-form factor.

Novel sources for non-classical states of photons in this monolithic platform will be reviewed. These chip-based sources can afford the integration of other devices such as laser pump sources, power and polarization splitters, gates, cavities and much more. This platform essentially offers the capability of transferring current quantum optical setups from the optical table in a lab into a practical realm and even the market place.

Also in this talk, some of the application that utilize the aforementioned sources will be discussed, including monolithic photonics architectures that enable deterministic splitting of entangled states of light will be discussed. In addition, sources for target detection and sensing protocols such as quantum illumination in integrated architectures will be also presented. The attributes of this platform offer unique opportunities in metrology applications where size, power, form-factor and space qualification are important factors.

Speaker Bio

Amr is a Professor in the department of electrical and computer engineering at the University of Toronto. Prior to his academic career, he held a position at Agilent Technologies, R&D division, in the UK between 2000 and 2004. At Agilent his responsibilities included developing InP-based photonic semiconductor integrated circuits and high-powered submarine-class 980 nm pump lasers. He received his Ph.D. and M.Sc. from the University of Glasgow with a focus on photonic devices and fabrication technologies, in 1999 and 1995 respectively. He received his B.Sc. from Cairo University in 1993, in electronics and telecommunications engineering science.

His research interests include photonic device physics and characterization techniques, with emphasis on nonlinear optics in III-V semiconductors; applied optical spectroscopy in III-V optoelectronic devices and materials; III-V fabrication and monolithic integration techniques.

July 2, Miles Padgett (U of Glasgow), Microscopy Using Quantum Sources of Illumination

Abstract

We use entangled photons as the light source in a normal microscope. Using this quantum illumination improves both the resolution and noise rejection in the image.

The resolution of any classical imaging system is limited by the diffraction created by the finite size of the imaging lens. By using a light source that emits pairs of entangled photons and carefully controlling a camera that is capable of detecting single photons it is possible to observe these photons arriving two-by-two. Applying camera analysis software to log only these two-by-two events one can form an image from the mid-point (bisector) of each of these pair events. The image formed from the sum of all these bisectors has an improved resolution that surpasses the classical limit.


Another advantage of using a quantum illumination is that it allows the two-by-two events from entangled photon pairs to be distinguished from background (classical) light and sensor noise. When processed in this way the resulting image is free of camera noise and any background light may be eliminated. The use of a quantum illumination protocol such as that used here results in the elimination of background light and therefore allows the development of the optical equivalent of quantum radar – a quantum enhanced LIDAR scheme.

Using quantum illumination, combined with commercially available cameras that are sensitive to single photons creates a new approach to super-resolution and low noise microscopy.

Imaging through noise with quantum illumination, T Gregory, P-A Moreau, E Toninelli, and M J Padgett, Science Advances 6, eaay2652 (2020)

Resolution-enhanced quantum imaging by centroid estimation of biphotons, E Toninelli, P-A Moreau, T Gregory, A Mihalyi, M Edgar, N Radwell, and M J Padgett, Optica 6, 347-353 (2019)

Speaker Bio
Miles Padgett holds the Kelvin Chair of Natural Philosophy in the School of Physics and Astronomy at the University of Glasgow. He heads an Optics Research Group covering a wide spectrum from blue-sky research to applied commercial development, funded by a combination of government charity and industry.

Miles is a Fellow both of the Royal Society of Edinburgh and the Royal Society, the UK's national academy. In 2008 Miles was awarded the UK Institute of Physics, Optics and Photonics Division Prize. In 2009 Miles was awarded the Institute of Physics, Young Medal "for pioneering work on optical angular momentum". In 2014 he was awarded the Kelvin Medal of the Royal Society of Edinburgh for his contributions to optics and his promotion of a global community of researchers. In 2015 he was awarded the Prize for Research into the Science of Light by the European Physical Society, in 2017 the Max Born Award of the OSA and in 2019 the Rumford Medal of the Royal Society. In 2019 he was named by Web of Science as one of the eight, globally highly-cited physics researchers in the UK.

His research group studies in the field of optics and in particular of optical angular momentum. Their contributions include an optical spanner for spinning micron-sized cells, use of orbital angular momentum to increase the data capacity of communication systems and an angular form of the quantum Einstein-Podolsky-Rosen (EPR) paradox.

July 6, 12:55 pm, Sponsor: TOPTICA Photonics

Abstract

TOPTICA is the world leader in diode laser and ultrafast technology for industrial and scientific markets. We offer the widest range of single mode tunable light in the 190 – 4000nm and 0.1 – 6 THz spectral region with various accessories to measure, characterize, stabilize and analyze light. TOPTICA's products are widely and successfully used for research and applications in quantum physics, quantum optics, atom optics, photonics and related fields. Whenever a laser is required – pulsed or cw, tunable or actively frequency stabilized – a frequency comb or even a complete solution combining many lasers and photonicals, TOPTICA is the ideal partner.


Website: http://www.toptica.com/

July 6, Carmen G. Almudéver (TU Delft), A Quantum Computer Architecture Perspective: Executing Quantum Applications on Real Quantum Processors

Abstract

Building a quantum computer is not only about having qubits or quantum processors, analogously to classical computers are not only based on transistors or integrated circuits. Accordingly, in the very recent times, a few unique research groups in academia and companies have been exploring and proposing high-level and low-level programming languages, compilers, microarchitecture and instruction set architectures for quantum computation as well as different computer architecture approaches. In other words, developing a quantum computer requires bridging quantum applications and quantum devices. This talk will address the main challenges of building a scalable full-stack quantum computing system followed by a discussion on its architecture focusing on fault tolerance and compilation of quantum algorithms on NISQ devices. I will also provide my vision on how the research community could accelerate the process towards building such a scalable quantum machine, potentially through vertical cross-layer co-design structured methodologies.

Speaker Bio

Dr. Carmen G. Almudever holds a BSc and a MsC in Telecommunication Engineering from Miguel Hernandez University of Elche, Spain and a PhD in Electronic Engineering from Polytechnic University of Catalonia, Spain. During her PhD she was working on beyond CMOS technologies such as carbon nanotubes and memristive devices as well as on novel reconfigurable architectures and dynamic computing systems. In 2102 she received a fellowship from Intel (Doctoral Student Honor Programme). In 2014, she joined Delft University of Technology for working on quantum computing and she is currently involved in the architectural and system design research with a particular emphasis on fault tolerant routing of quantum states and the corresponding quantum communication infrastructure. She has published over 20 technical publications in nanotechnology and microelectronics journals and circuits and systems conferences.  Her main research interests include quantum computing, quantum computer architecture, and mapping of fault-tolerant quantum circuits.

July 6, 1:50 pm, Poster: Xiruo Yan (U. of British Columbia), A Quantum Computer Architecture Based on Silicon Donor Qubits Coupled by Photons

Abstract

We describe an architecture for fault-tolerant universal quantum computation suited for donor qubits in silicon, coupled by photonic interconnects. The required quantum primitives are local measurements/unitaries, and a non-local Pauli measurement.

July 7, Eric Fossum (Dartmouth College), Progress Status on Quanta Image Sensors

Abstract

The Quanta Image Sensor (QIS) is a photon-counting image sensor conceptualized in 2004 by Fossum and reduced to practice over the past 8 years at Dartmouth using a CMOS image sensor platform, and now referred to as CIS-QIS.  This CIS-QIS device is a photon-number resolving sensor that does not use avalanche multiplication, and has been demonstrated in megapixel format with small pixel pitch. This progress will be reported along with associated progress of the spin-out company Gigajot, and other collaborators.  In just the past few years,  SPAD devices have also been used to explore the QIS concept.  Termed SPAD-QIS, the first megapixel SPAD-QIS was reported just in the past few weeks.  A comparison of the advantages of CIS-QIS and SPAD-QIS will be presented.  Both represent a paradigm shift in image acquisition and may become important for many quantum photonics applications.

Speaker Bio

Professor Fossum, a Queen Elizabeth Prize Laureate, is one of the world's experts in solid-state image sensors. He invented the CMOS active pixel image sensor used in almost all cell-phone cameras, webcams, many digital-still cameras and in medical imaging, among other applications. He worked at the NASA Jet Propulsion Laboratory and was CEO of two successful high tech companies and is a serial entrepreneur, recently co-founding a new startup with two former PhD students, Gigajot. See his personal webpage for more information. His interests at Dartmouth are teaching and researching the next generation of solid-state image sensors for photon-counting and gigapixel cameras. He also directs Dartmouth’s PhD Innovation Programs and serves as Dartmouth’s Associate Provost for Entrepreneurship and Technology Transfer.

July 7, 1:50pm, Poster: Davoud Adinehloo (U. at Buffalo), Temperature-induced Valley Polarization in WS2 Heterostructures

Abstract

We investigate the temperature dependence of valley polarization in WS2 heterostructures. WS2 layer is considered as an optically active material. The influence of heterostructures of different materials on the degree of valley polarization is depicted. The results indicate that unlike interaction in WS2 encapsulated with hBN, the interaction between WS2 and graphene has an intense impact on the temperature dependence depolarization. Furthermore, intervalley scattering rates under resonant and non-resonant excitation energy as the crucial parameters to see the temperature dependence by considering Fröhlich coupling are calculated. The results show the scattering rate is almost independent of temperature due to large phonon energy. Subsequently, the major contribution of observed valley depolarization should come from the change in the radiative lifetime.

July 8, 12:55 pm, Sponsor: Hamamatsu Photonics

Abstract

Hamamatsu Corporation is the North American subsidiary of Hamamatsu Photonics K.K. (Japan), a leading manufacturer of state-of-the-art devices for the generation and measurement of infrared, visible, and ultraviolet light, as well as xrays. These devices include silicon photomultipliers, photomultiplier tubes, photodiodes, infrared detectors, image sensors, spectrometers, spatial light modulators, cameras, and scientific light sources. This summer we are hosting a series of webinars about these devices, and those interested in attending can register at our website, www.hamamatsu.com

July 8, Dylan Mahler (Xanadu Quantum Technologies), Integrated Platforms for Continuous Variable Quantum Optics

Abstract

Xanadu is a full-stack quantum computing company located in Toronto, Canada. Focussing on implementations of continuous variable integrated photonics, Xanadu is dedicated to developing and providing access to practical quantum devices integrated with its quantum optics simulator Strawberry Fields and machine learning platform PennyLane. In the past decade weakly driven parametric fluorescence, typically using spontaneous four-wave mixing orparametric downconversion, has emerged as the workhorse by which nonclassical light is generated on chipbased nanophotonic platforms. Even more recently, these methods have been used to generate single mode squeezed vacuum states. Together with programmable interferometers and photon-number resolving detection,this technology provides a route to near-term quantum computation. I will begin by giving an introduction to Xanadu, including its motivations and goals. The bulk of my talk will detail Xanadu's progress towards a photonic quantum processor that is available on the cloud.

Speaker Bio

Dylan holds a PhD in Physics from the University of Toronto. His expertise includes quantum state and process characterisation, adaptivity, and weak measurements, as well as quantum integrated photonics and non-classical state generation.

July 8, 1:50pm, Poster: Chris Maloney (VPIphotonics), Modelling Weak-Coherent CV-QKD Systems Using a Classical Simulation Framework

Abstract

Due to their compatibility to existing telecom technology, continuous variable (CV) weak coherent state protocols are promising candidates for a broad deployment of quantum key distribution (QKD) technology. We demonstrate how an existing simulation framework for modelling classical optical systems can be utilized for simulations of weak-coherent CV-QKD links. Having complemented the physical simulation layer by the post-processing layer (reconciliation and privacy amplification), we are able to estimate secure key rates from simulations, greatly boosting the development speed of practical CV-QKD schemes and implementations.

July 9, Ray LaPierre (McMaster U), III-V Nanowire Growth for Quantum Photonics and Optoelectronics

Abstract

III-V compound semiconductor nanowires (NWs) are being developed for the next generation of optoelectronic devices such as photodetectors, photovoltaics, betavoltaics and thermoelectrics. The self-assisted vapor-liquid-solid method is now a well-established technique for the growth of III-V NWs on silicon substrates. In this method, an array of holes in a SiO2 film is used for metal droplet formation, which seeds the growth of vertically oriented NWs within a periodic array. The free lateral surfaces of NWs allow elastic relaxation of lattice misfit strain without the generation of dislocations, permitting unique heterostructures and the direct integration of III-V materials on silicon substrates. Furthermore, NWs permit high optical absorption due to an optical antenna effect. The optical absorption in NW arrays can exceed that due to a thin film of equivalent thickness, enabling high efficiency NW-based photonic devices. Furthermore, optical resonances that depend on the NW diameter allow multispectral absorption. Some of the challenges associated with NW materials and devices, including quantum dot formation, will be illustrated.

Speaker Bio

Ray LaPierre obtained a Ph.D. degree in 1997 in the Engineering Physics Department at McMaster University (Hamilton, Ontario, Canada) where he developed molecular beam epitaxy of compound semiconductor alloys for laser diodes in telecom applications. Upon completion of his graduate work, he joined JDS Uniphase (Ottawa, Ontario, Canada) where he developed dielectric coatings for wavelength division multiplexing devices. In 2004, he rejoined McMaster University as an Assistant Professor in the Engineering Physics Department. He is currently Professor and Chair with interests in III-V nanowires, molecular beam epitaxy, and applications in photovoltaics, photodetectors, betavoltaics, thermoelectrics and quantum information processing. He has over 119 lifetime publications, 57 invited presentations and 179 contributed conference presentations. He is also Editor-in-Chief of the journal Nanotechnology. Further information related to Dr. LaPierre’s research may be found at: https://www.eng.mcmaster.ca/engphys/people/faculty/ray-lapierre.

July 10, Karl Berggren (MIT), Superconducting Nanowire Single-Photon Detectors: From Photon-Number Resolution to Dark-Matter Detection

Abstract

Superconducting nanowire single-photon detectors (SNSPDs) have distinguished themselves as a near-optimal choice for a range of quantum information applications, including integrated photonics and quantum key distribution.  But the most recent demands from the quantum domain are stretching their capabilities.  In particular, photon number resolution has not been readily available in high-performance variants of the devices, and superconducting nanowires were generally thought not to be capable of intrinsic photon number resolution.  Recently, significant results in this area have shown that photon number resolution is quite practical with SNSPDs. In addition, wider nanowires have shown good performance, suggesting that the devices can be fabricated using standard photolithography equipment.  In this talk, I will review the SNSPD technology, as well as discuss our latest results.

Speaker Bio

Prof. Berggren is a Professor of Electrical Engineering at Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, where he heads the Quantum Nanostructures and Nanofabrication Group. He is also Director of the Nanostructures Laboratory in the Research Laboratory of Electronics and is a core faculty member in the Microsystems Technology Laboratory (MTL). From December of 1996 to September of 2003, Prof. Berggren served as a staff member at MIT Lincoln Laboratory in Lexington, Massachusetts, and from 2010 to 2011, was on sabbatical at the Technical University of Delft.

 

His current research focuses on methods of nanofabrication, especially applied to superconductive quantum circuits, photodetectors, high-speed superconductive electronics, and energy systems. His thesis work focused on nanolithographic methods using neutral atoms.

 

July 13, 9:00 am, Nicolas Menicucci (RMIT U), Talk Title TBD

Abstract

TBD

Speaker Bio

Nicolas Menicucci is an Associate Professor in the School of Science at RMIT University. After completing his PhD in 2008 under joint supervision of Prof Shivaji Sondhi at Princeton University and Profs Michael Nielsen and Gerard Milburn at The University of Queensland, A. Prof Menicucci secured independent research fellowships in Canada and Australia. From 2008–2011, he worked as a Postdoctoral Fellow at Perimeter Institute for Theoretical Physics in Waterloo, Ontario. In 2011, he joined the University of Sydney, initially as a University Postdoctoral Fellow and then as a DECRA Research Fellow funded by the Australian Research Council. He joined RMIT as a Vice-Chancellor’s Senior Research Fellow in 2015 and was promoted to Associate Professor in 2019.


A. Prof Menicucci ’s research expertise includes theoretical quantum computation, quantum optics, and relativistic quantum information. His interests include both quantum technology and fundamental physics. He has published more than 35 papers on these topics and is now recognised as a pioneer and leader in the development of continuous-variable (CV) cluster states as a platform for optical quantum computing. Several breakthrough experiments in this area, including a demonstration by CQC2T collaborators of a 1-million-mode CV cluster state, have demonstrated the potential of these resource states to be made on an immense scale. Such scalability is a key requirement for any quantum computing platform. A. Prof Menicucci has also contributed key results at the interface of quantum information and relativity, and he currently serves a Council Member of the International Society of Relativistic Quantum Information.

July 14, Michael Fox (U of Colorado, Boulder), Preparing for the Quantum Revolution - What is the Role of Higher Education?

Abstract

Quantum sensing, quantum networking and communication, and quantum computing have attracted significant attention recently, as these quantum technologies could offer significant advantages over existing technologies. In order to accelerate the commercialization of these quantum technologies, the workforce must be equipped with the necessary skills. We present the results of a qualitative study of the quantum industry, where we conducted a series of interviews with 21 U.S. companies in the quantum industry. The aim of these interviews was to profile the types of jobs that exist and describe the variety of skills valued across the quantum industry. This has allowed us to identify the current routes into the quantum industry, providing a picture of the current role of higher education in training the quantum workforce. Additionally, we enquired about the training and hiring challenges the quantum industry is facing and how higher education may optimize the important role it is currently playing.

Speaker Bio

Michael is a post-doctoral researcher in the Lewandowski group working on the Quantum Education and Workforce initiative. This work is looking at how university education is meeting the current needs of the "Quantum Industry" in terms of student knowledge and skills, and what developments might be necessary to meet future needs.


Michael completed his undergraduate Master of Physics at the University of Oxford, where he stayed for a PhD in Theoretical Plasma Physics, which he completed in 2017. Since then, he has qualified as a teacher whilst working at a secondary school in London, teaching children from ages 11-18.

July 15, Jennifer Choy (U of Wisconsin), Photonic Engineering of Atomic Sensors

Abstract

The discrete electronic energy levels in atoms and the ability to probe and control them using their interactions with electromagnetic fields have enabled a host of applications in quantum sensing and metrology, including atom-based time and frequency standards, magnetometers, and inertial sensors. Precision measurements with atoms rely on the capability to control the frequency, phase, polarization, and direction of photons used to prepare and measure quantum systems, and thus developments in near-infrared optics and photonics are critical to advancing state-of-the-art atomic sensors. In this talk, I will summarize the basic principles of atom-based quantum sensing and highlight the role of atom-photon interactions in quantum measurements. The benefits and challenges of realizing atom-based quantum sensors will be illustrated through examples from my prior research, including the development of sensitive accelerometers and gyroscopes based on cold-atom interferometers. I will discuss the critical developments in photonic engineering that are still needed to improve the performance and functionality of atom-based-quantum sensors and our research progress at UW-Madison towards addressing these needs.

Speaker Bio

Jennifer Choy is an Assistant Professor at the Department of Engineering Physics at the University of Wisconsin–Madison since January 2019. Prior to joining UW-Madison, she was a Principal Member of Technical Staff at Draper Laboratory, where she led developments of atomic and optical inertial sensors. Jen’s research interests include quantum sensing, experimental atomic and optical physics, and nanophotonics. She received S.B. degrees in Physics and Nuclear Engineering from the Massachusetts Institute of Technology, and a Ph.D. in Applied Physics from Harvard University.

July 16, Lukas Chrostowski (U of British Columbia), Talk Title TBD

Abstract

TBD

Speaker Bio

Lukas Chrostowski is a Professor of Electrical and Computer Engineering at the University of British Columbia, Vancouver, BC, Canada. He earned the B.Eng. in electrical engineering from McGill University in 1998 and a PhD from the University of California at Berkeley in 2004. Chrostowski received the Killam Teaching Prize at the University of British Columbia in 2014. He co-authored the book Silicon Photonics Design (Cambridge University Press, 2015). He is the Program Director of the NSERC CREATE Silicon Electronic-Photonic Integrated Circuits (Si-EPIC) training program in Canada, and has been teaching silicon photonics workshops and courses since 2008.

Dr. Chrostowski's research interests are in optoelectronics, nano-photonics with an emphasis on silicon photonic integrated circuits (PICs). He is also interested in the design, modeling, and nanofabrication of lasers, primarily Vertical Cavity Surface Emitting Lasers (VCSELs), for applications in high-speed optical communications, optical interconnects and biophotonics. 

July 17, Dirk Englund (MIT), Large-Scale Quantum Photonics for Computing and Communications

Abstract

Recent advances in materials, control, and nanofabrication now open the prospect for scalable quantum technologies based on solid-state quantum systems. In particular, photonic integrated circuits (PICs) now allow routing photons with high precision and low loss, and solid-state artificial atoms provide high-quality spin-photon interfaces. The first part of this talk will review progress towards quantum memory-integrated PICs for quantum networks and modular quantum computers. The second part of the talk will consider new directions for processing classical and quantum information in deep learning neural networks architectures.

Figure: A programmable photonic integrated circuit (center) for machine learning acceleration (left) or quantum repeater networks (right).

Speaker Bio

Dirk Englund received his BS in Physics from Caltech in 2002. After a Fulbright fellowship at T.U. Eindhoven, he completed an MS in Electrical Engineering and a PhD in Applied Physics at Stanford University in 2008. After a postdoctoral fellowship at Harvard University, he joined Columbia University as Assistant Professor of E.E. and of Applied Physics. He joined the MIT EECS faculty in 2013. Recent recognitions include the 2011 PECASE, the 2011 Sloan Fellowship in Physics, the 2012 DARPA Young Faculty Award, the 2017 ACS Photonics Young Investigator Award, and the OSA's 2017 Adolph Lomb Medal, and a Bose Research Fellowship in 2018.


Visit the MIT Quantum Photonics Laboratory: qplab.mit.edu. Our collaborative Projects (MIT, Harvard, Sandia National Laboratory, MITRE Corp, MIT Lincoln Laboratory) have opportunities for outstanding theorists and experimentalists!


July 20, TBD

Abstract

TBD

July 21, Saikat Guha (U.of Arizona), Infinite-fold enhancement in communications capacity using pre-shared entanglement

Abstract

Pre-shared entanglement can significantly boost classical optical communication rates in the regime of high thermal noise, and a low-brightness transmitter. In this regime, the ratio between the entanglement-assisted capacity and the Holevo capacity---the maximum reliable-communication rate permitted by quantum mechanics without any pre-shared entanglement as a resource---is known to scale as log(1/N), where N<<1 is the mean transmitted photon number per mode. This is especially promising in enabling a large boost to radio-frequency communications in the weak-transmit-power regime, by exploiting pre-shared optical-frequency entanglement, e.g., distributed by the quantum internet. In this talk, as detailed in this paper (arXiv:2001.03934), we will describe a structured design of a quantum transmitter and receiver that leverages continuous-variable pre-shared entanglement from a downconversion source, which can harness this purported infinite-fold capacity enhancement---a problem that has been open for a long time. Finally, the implication of this result to the breaking of the well-known {\em square-root law} for covert communications, with pre-shared entanglement assistance, will be discussed (details in: arXiv:2002.06733).

Speaker Bio

My background lies at the intersection of information theory and quantum optics. At the high level, my research interests lie in investigating fundamental quantum limits of photonic information processing with applications to optical communications, imaging, sensing and computation. I am interested in investigating structured realizations of optical systems whose performance can approach these fundamental limits. I am also interested in network information and communication theory, and applications of ideas therein to developing scalable realizations of photonic quantum computing and a quantum communication network.

July 22, David Starling (Penn State - Hazleton), Single Photon Generation and Manipulation in Silicon Photonic Integrated Circuits

Abstract

We present recent results from work conducted in the RIT Integrated Photonics Group in collaboration with the Air Force Research Laboratory. We will discuss the generation of high-brightness TM-polarized photon pairs which were generated via nonlinearly coupled resonators. This source produces high quality heralded single photons and provides enhanced tunability to compensate for self-phase modulation and dispersion. Additionally, we will present a two-photon interference experiment using a resonant hong-ou-mandel interferometer, which has a compact footprint when compared to standard Mach-Zehnder interferometers. This new design is capable of high visibility. We conclude with some recent results related to low-loss, high-dimensional packaging for entangled photon applications.

July 23, Women in Quantum: Increasing Diversity in Industry and Academia Panel

Abstract

This unique event will create a community among women in this area and increase the outreach efforts of future women researchers.

Speaker Bio

Moderator: Sonia Lopez Alarcon (RIT):
Dr. Sonia Lopez Alarcon received a B.S. in Physics and M.S. Electronics in from the University Complutense of Madrid, Spain. In her latest college years she worked at Lucent Technologies, Madrid, and Fundetel at Polytechnic University of Madrid, where she became familiar with the design and fabrication process of integrated circuits. In 2003 she started working toward a Ph.D. degree in Computer Engineering at the University Complutense of Madrid, focusing on cache hierarchy in simultaneous multithreaded architectures. In 2004 she started her cooperative research with Professor David H. Albonesi, at the University of Rochester and, later on, at Cornell University. She graduated in 2009, and she joined the Department of Computer Engineering at the Rochester Institute of Technology in the fall of 2009. Her current research interest is on cache optimization, GPU architecture, and heterogeneous hardware solutions. 

July 24, Mario Krenn (U. of Toronto), Conceptual Understanding Through Efficient Inverse-design of Quantum Optical Experiments

Abstract

I will talk about Theseus, an efficient algorithm for the design of quantum experiments, which we use to solve several open questions in experimental quantum optics. The algorithm' core is a physics-inspired, graph-theoretical representation of quantum states, which  akes it significantly faster than previous comparable approaches. The gain in speed allows for topological optimization, leading to a reduction of the experiment to its conceptual core. We demonstrate Theseus on the challenging tasks of generating and transforming high-dimensional, multi-photonic quantum states. In each case, we can interpret, generalize and conceptually understand the solutions without performing any further calculations. We argue that therefore, our algorithm contributes directly to the central aims of science.

Speaker Bio

Mario Krenn is an Erwin-Schrödinger fellow at the University of Toronto and the Vector Institute for Artificial Intelligence in Canada. He received his Ph.D. in physics from the University of Vienna, Austria, in 2017. His research focuses on computer-inspired and computer-augmented science and on how to use computer algorithms creatively in science. The topics he studies include computer-inspired quantum experiments and molecules, as well as so-called semantic networks for predicting future research directions in quantum physics.

July 24,1:50 pm, Poster: Jaime Cardenas (U of Rochester)

Sponsors

PLATINUM

   

GOLD

SILVER

BRONZE

                

        

Panel Events

Quantum Careers and Education

Industry

Women in Quantum

Confirmed Speakers

Carmen G. Almudever, TU Delft
Karl Berggren, MIT
Jacques Carolan, MIT
Jennifer Choy, University of Wisconsin
Lukas Chrostowski, University of British Columbia
Dominique Dagenais, NSF
Dirk Englund, MIT
Eric Fossum, Dartmouth
Michael Fox, University of Colorado Boulder
Gregory Fuchs, Cornell University
Saikat Guha, University of Arizona
Amr Helmy, University of Toronto
Dylan Mahler, Xanadu
Hamed Majedi, University of Waterloo
Nicolas Menicucci, RMIT University
Ray LaPierre, McMaster University
Miles Padgett, University of Glasgow
Babak Saif, NASA
James Schneeloch, Air Force Research Laboratory
Jeffrey Shapiro, MIT
Christine Silberhorn, Paderborn University
David Starling, PennState Hazleton
Jelena Vuckovic, Stanford
Andrew Weiner, Purdue
Andrew White, University of Queensland
Carl Williams, NIST

Scientific Organizing Committee

Michael Fanto, Amr Helmy, Gregory Howland, Sonia Lopez Alarcon, Hamad Majedi, Peter McMahon, Stefan Preble, David Starling, Tom Tongue, Ben Zwickl

Local Organizing Committee

Matthew van Niekerk, Dr. John Serafini, Ashleigh Hunt, Breonna Cosgrove, Matthew Peeks, Justin Gallagher

Speaker Information

Talks are scheduled for 40 minutes, with 35 minutes for the presentation and 5 minutes for questions. Please submit your title, abstract (<250 words), and headshot, by June 30 to ritphotonics@rit.edu. We will schedule one talk per day beginning June 23 at 1 p.m. EDT followed by virtual poster presentations. Please enter the zoom before 12:45 pm (EDT) to test your presentation and sound. Your presentations should be sent (if <20 MB in size) to ritphotonics@rit.edu before the day of your talk. For larger files (>20 MB), speakers could upload the presentation to their cloud storage account, e.g. Dropbox or Google Drive, and then provide the download link to ritphotonics@rit.edu.

Poster Information

Posters are automatically accepted after registration. Follow the SPIE guidelines for format, fonts, etc. Provide title and abstract in registration. Send Powerpoint or PDF file to ritphotonics@rit.edu by June 30, 2020. Presenters have the option of including a link to a video presentation of the poster, stored on the presenter's Google Drive (or Dropbox, Youtube, etc.), on the poster. Poster presentations will occur after each talk and should be no more than 5 minutes. Presenters should also be sure to include an email address to which viewers can email questions about the poster. Please enter the zoom before 12:45 pm (EDT) to test your presentation and sound.

Venue

Online. More information coming soon.

Photo Gallery

Coming soon.

Registration

Corporate Sponsorship

Sponsorship opportunities for Photonics for Quantum 2 (PfQ2) are now available!
Please contact Robyn Rosechandler for more information on sponsorship levels.