Publikation:

Biased Ising Model Using Two Coupled Kerr Parametric Oscillators with External Force

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2024

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Álvarez, Pablo
Pittilini, Davide
Miserocchi, Filippo
Raamamurthy, Sathyanarayanan
Margiani, Gabriel
Eichler, Alexander

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https://doi.org/10.1103/physrevlett.132.207401
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Deutsche Forschungsgemeinschaft (DFG): 449653034
Deutsche Forschungsgemeinschaft (DFG): SFB1432
Swiss National Science Foundation: CRSII5_206008/1

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Physical Review Letters. American Physical Society (APS). 2024, 132(20), 207401. ISSN 0031-9007. eISSN 1079-7114. Verfügbar unter: doi: 10.1103/physrevlett.132.207401

Zusammenfassung

Networks of coupled Kerr parametric oscillators (KPOs) are a leading physical platform for analog solving of complex optimization problems. These systems are colloquially known as “Ising machines.” We experimentally and theoretically study such a network under the influence of an external force. The force breaks the collective phase-parity symmetry of the system and competes with the intrinsic coupling in ordering the network configuration, similar to how a magnetic field biases an interacting spin ensemble. Specifically, we demonstrate how the force can be used to control the system, and highlight the crucial role of the phase and symmetry of the force. Our Letter thereby provides a method to create Ising machines with arbitrary bias, extending even to exotic cases that are impossible to engineer in real spin systems.

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530 Physik

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ISO 690ÁLVAREZ, Pablo, Davide PITTILINI, Filippo MISEROCCHI, Sathyanarayanan RAAMAMURTHY, Gabriel MARGIANI, Orjan AMEYE, Javier DEL PINO, Oded ZILBERBERG, Alexander EICHLER, 2024. Biased Ising Model Using Two Coupled Kerr Parametric Oscillators with External Force. In: Physical Review Letters. American Physical Society (APS). 2024, 132(20), 207401. ISSN 0031-9007. eISSN 1079-7114. Verfügbar unter: doi: 10.1103/physrevlett.132.207401
BibTex
@article{Alvarez2024Biase-70456,
  year={2024},
  doi={10.1103/physrevlett.132.207401},
  title={Biased Ising Model Using Two Coupled Kerr Parametric Oscillators with External Force},
  number={20},
  volume={132},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Álvarez, Pablo and Pittilini, Davide and Miserocchi, Filippo and Raamamurthy, Sathyanarayanan and Margiani, Gabriel and Ameye, Orjan and del Pino, Javier and Zilberberg, Oded and Eichler, Alexander},
  note={Article Number: 207401}
}
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