no code implementations • 17 May 2022 • Sunil Pai, Zhanghao Sun, Tyler W. Hughes, Taewon Park, Ben Bartlett, Ian A. D. Williamson, Momchil Minkov, Maziyar Milanizadeh, Nathnael Abebe, Francesco Morichetti, Andrea Melloni, Shanhui Fan, Olav Solgaard, David A. B. Miller
Our findings suggest a new training paradigm for photonics-accelerated artificial intelligence based entirely on a physical analog of the popular backpropagation technique.
no code implementations • 19 Jan 2021 • Ben Bartlett, Avik Dutt, Shanhui Fan
Photonics offers unique advantages as a substrate for quantum information processing, but imposes fundamental scalability challenges.
Quantum Physics Optics
1 code implementation • 1 Mar 2020 • Rahul Trivedi, Guillermo Angeris, Logan Su, Stephen Boyd, Shanhui Fan, Jelena Vuckovic
We illustrate our bounding procedure by studying limits on the scattering cross-sections of dielectric and metallic particles in the absence of material losses.
Optics
1 code implementation • 1 Mar 2020 • Momchil Minkov, Ian A. D. Williamson, Lucio C. Andreani, Dario Gerace, Beicheng Lou, Alex Y. Song, Tyler W. Hughes, Shanhui Fan
Here, we overcome this through the use of automatic differentiation, which is a generalization of the adjoint variable method to arbitrary computational graphs.
Optics Computational Engineering, Finance, and Science Applied Physics Computational Physics
1 code implementation • 22 Oct 2019 • Ben Bartlett, Shanhui Fan
We present a photonic integrated circuit architecture for a quantum programmable gate array (QPGA) capable of preparing arbitrary quantum states and operators.
Quantum Physics Optics
1 code implementation • 11 Sep 2019 • Sunil Pai, Ian A. D. Williamson, Tyler W. Hughes, Momchil Minkov, Olav Solgaard, Shanhui Fan, David A. B. Miller
Reconfigurable photonic mesh networks of tunable beamsplitter nodes can linearly transform $N$-dimensional vectors representing input modal amplitudes of light for applications such as energy-efficient machine learning hardware, quantum information processing, and mode demultiplexing.
2 code implementations • 28 Aug 2019 • Tyler W. Hughes, Ian A. D. Williamson, Momchil Minkov, Shanhui Fan
We present a previously unexplored forward-mode differentiation method for Maxwell's equations, with applications in the field of sensitivity analysis.
Optics Numerical Analysis Numerical Analysis Computational Physics
1 code implementation • 29 Apr 2019 • Tyler W. Hughes, Ian A. D. Williamson, Momchil Minkov, Shanhui Fan
These findings pave the way for a new class of analog machine learning platforms, capable of fast and efficient processing of information in its native domain.
no code implementations • CVPR 2019 • Xin Lei, Liangyu He, Yixuan Tan, Ken Xingze Wang, Xinggang Wang, Yihan Du, Shanhui Fan, Zongfu Yu
Visual object recognition under situations in which the direct line-of-sight is blocked, such as when it is occluded around the corner, is of practical importance in a wide range of applications.
4 code implementations • 12 Mar 2019 • Ian A. D. Williamson, Tyler W. Hughes, Momchil Minkov, Ben Bartlett, Sunil Pai, Shanhui Fan
We introduce an electro-optic hardware platform for nonlinear activation functions in optical neural networks.
1 code implementation • 26 Feb 2019 • Tyler W. Hughes, R. Joel England, Shanhui Fan
Dielectric laser acceleration (DLA) represents a promising approach to building miniature particle accelerators on a chip.
Optics Accelerator Physics Applied Physics
1 code implementation • 13 Jan 2019 • Rahul Trivedi, Marina Radulaski, Kevin A. Fischer, Shanhui Fan, Jelena Vučković
We use the scattering matrix formalism to analyze photon blockade in coherently-driven CQED systems with a weak drive.
Quantum Physics
1 code implementation • 3 Nov 2018 • Tyler W. Hughes, Momchil Minkov, Ian A. D. Williamson, Shanhui Fan
Here, we present an extension of this method to modeling nonlinear devices in the frequency domain, with the nonlinear response directly included in the gradient computation.
Optics Applied Physics Computational Physics
no code implementations • 25 May 2018 • Tyler W. Hughes, Momchil Minkov, Yu Shi, Shanhui Fan
Recently, integrated optics has gained interest as a hardware platform for implementing machine learning algorithms.