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Cited by 541

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Network of time-multiplexed optical parametric oscillators as a coherent Ising machine

Open access
Marandi, Alireza, Wang, Zhe, Takata, Kenta, Byer, Robert L., Yamamoto, Yoshihisa·2014·Nature Photonics

Abstract

A network of four degenerate optical parametric oscillators (OPOs) is employed to find the ground state of the Ising Hamiltonian. The good performance of the network reveals the potential of OPOs for many similar problems. Finding the ground states of the Ising Hamiltonian1 maps to various combinatorial optimization problems in biology, medicine, wireless communications, artificial intelligence and social network. So far, no efficient classical and quantum algorithm is known for these problems and intensive research is focused on creating physical systems—Ising machines—capable of finding the absolute or approximate ground states of the Ising Hamiltonian2,3,4,5,6. Here, we report an Ising machine using a network of degenerate optical parametric oscillators (OPOs). Spins are represented with above-threshold binary phases of the OPOs and the Ising couplings are realized by mutual injections7. The network is implemented in a single OPO ring cavity with multiple trains of femtosecond pulses and configurable mutual couplings, and operates at room temperature. We programmed a small non-deterministic polynomial time-hard problem on a 4-OPO Ising machine and in 1,000 runs no computational error was detected.

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Metadata

Authors
Marandi, A., Wang, Z., Takata, K., Byer, R. L., & Yamamoto, Y.
Venue
Nature Photonics
Published
2014-10-26
Volume
8
Issue
12
Pages
937-942
ISSN
  • 1749-4885 (ISSN-L)
  • 1749-4893
OpenAlex
W2042545232
Cited by
541
References
6
FWCI
25.09
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Network of time-multiplexed optical parametric oscillators as a coherent Ising machine. https://app.cochat.ai/papers/10.1038/nphoton.2014.249
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Marandi, A., Wang, Z., Takata, K., Byer, R. L., & Yamamoto, Y. (2014). Network of time-multiplexed optical parametric oscillators as a coherent Ising machine. Nature Photonics. https://doi.org/10.1038/nphoton.2014.249

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