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4 October 2022 Time-delayed nonlinear phenomena in exciton-polariton condensates for neuromorphic computing (Conference Presentation)
Magdalena Furman, Rafał Mirek, Andrzej Opala, Mateusz Król, Krzysztof Tyszka, Bartłomiej Seredyński, Wojciech Pacuski, Jan Suffczyński, Jacek Szczytko, Michał Matuszewski, Barbara Piętka
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Proceedings Volume PC12204, Emerging Topics in Artificial Intelligence (ETAI) 2022; PC1220418 (2022) https://doi.org/10.1117/12.2633405
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States
Abstract
We show that time-delayed nonlinear effects observed between exciton-polariton condensates can be used to create neural networks in which information is encoded in time. We form condensates on semiconductor microcavity using optical pulses that reach the sample at different times. Strongly nonlinear effects are induced by time-dependent interactions with a long-lived excitonic reservoir. Such nonlinearities make it possible to create a nonlinear XOR logic gate that performs operations with a picosecond time scale. A neural network based on such a logic gate performs a speech recognition tasks with high accuracy.
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Magdalena Furman, Rafał Mirek, Andrzej Opala, Mateusz Król, Krzysztof Tyszka, Bartłomiej Seredyński, Wojciech Pacuski, Jan Suffczyński, Jacek Szczytko, Michał Matuszewski, and Barbara Piętka "Time-delayed nonlinear phenomena in exciton-polariton condensates for neuromorphic computing (Conference Presentation)", Proc. SPIE PC12204, Emerging Topics in Artificial Intelligence (ETAI) 2022, PC1220418 (4 October 2022); https://doi.org/10.1117/12.2633405
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KEYWORDS
Logic devices
Speech recognition
Optical microcavities
Optoelectronics
Picosecond phenomena
Polaritons
Quasiparticles
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