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Article Dans Une Revue Physical Review A Année : 2022

Tunable spin-glass optical simulator based on multiple light scattering

Résumé

The race to heuristically solve non-deterministic polynomial-time (NP) problems through efficient methods is ongoing. Recently, optics was demonstrated as a promising tool to find the ground-state of a spin-glass Ising Hamiltonian, which represents an archetypal NP problem. However, achieving completely programmable spin couplings in these large-scale optical Ising simulators remains an open challenge. Here, by exploiting the knowledge of the transmission matrix of a random medium, we experimentally demonstrate the possibility of controlling the couplings of a fully-connected Ising spin-system. By tailoring the input wavefront we showcase the possibility of modifying the Ising Hamiltonian both by accounting for an external magnetic-field and by controlling the number of degenerate ground-states and their properties and probabilities. Our results represent a relevant step toward the realisation of fully-programmable Ising-machines on thin optical-platforms, capable of solving complex spin-glass Hamiltonians on a large scale.
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Dates et versions

hal-03617446 , version 1 (23-03-2022)

Identifiants

Citer

Gianni Jacucci, Louis Delloye, Davide Pierangeli, Mushegh Rafayelyan, Claudio Conti, et al.. Tunable spin-glass optical simulator based on multiple light scattering. Physical Review A, 2022, 105 (3), pp.033502. ⟨10.1103/PhysRevA.105.033502⟩. ⟨hal-03617446⟩
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