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arXiv · 2309.10764

An optical Ising spin glass simulator with tuneable short range couplings

Louis Delloye·Gianni Jacucci·Raj Pandya·Davide Pierangeli·Claudio Conti·Sylvain Gigan
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Abstract

Non-deterministic polynomial-time (NP) problems are ubiquitous in almost every field of study. Recently, all-optical approaches have been explored for solving classic NP problems based on the spin-glass Ising Hamiltonian. However, obtaining programmable spin-couplings in large-scale optical Ising simulators, on the other hand, remains challenging. Here, we demonstrate control of the interaction length between user-defined parts of a fully-connected Ising system. This is achieved by exploiting the knowledge of the transmission matrix of a random medium and by using diffusers of various thickness. Finally, we exploit our spin-coupling control to observe replica-to-replica fluctuations and its analogy to standard replica symmetry breaking.

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Louis Delloye, Gianni Jacucci, Raj Pandya, Davide Pierangeli, Claudio Conti, Sylvain Gigan. 2023-09-19. An optical Ising spin glass simulator with tuneable short range couplings. https://doi.org/10.1103/mwx5-32rj

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