Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session L16: Quantum Annealing and Optimization II
8:00 AM–10:36 AM,
Wednesday, March 4, 2020
Room: 201
Sponsoring
Unit:
DQI
Chair: Yudong Cao, Zapata
Abstract: L16.00003 : All-optical Ising machine by spatial light modulation
Presenter:
Davide Pierangeli
(Univ of Rome La Sapienza)
Authors:
Davide Pierangeli
(Univ of Rome La Sapienza)
Giulia Marcucci
(Univ of Rome La Sapienza)
Claudio Conti
(Univ of Rome La Sapienza)
Here, we make use of optical spins that are encoded and controlled by spatial light modulation to realize a large-scale all-optical Ising machine [1]. We implement photonic spin configurations with an unprecedented number of interacting nodes that settle in the corresponding Ising ground state. The setup, which is based on the sole spatial coherence of light, suggests a scalable and efficient approach for optical computing. Our results open the route to Ising machines that exploit spatial degrees of freedom of light for parallel spin processing.
[1] D.Pierangeli et al., Large-scale photonic Ising machine by spatial light modulation, Phys. Rev. Lett. 122, 213902 (2019)
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