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Showing 1–4 of 4 results
Advanced filters: Author: Timothée Leleu Clear advanced filters
  • Finding the ground state of a variety of complex systems can be formulated as the minimization of the total interaction energy of Ising machines, posing a challenge as computational cost increases exponentially with system size. In this paper, the authors propose an algorithm to find the ground states of Ising-type problems by destabilising non-trivial attractors in combinatorial optimisation solvers through a heuristic modulation of the target amplitude, and show that this provides an improved scaling with respect to several existing methods.

    • Timothée Leleu
    • Farad Khoyratee
    • Kazuyuki Aihara
    ResearchOpen Access
    Communications Physics
    Volume: 4, P: 1-10
  • Neuromorphic devices take inspiration from spiking dynamics of neurons in the brain. Here, the authors demonstrate synchronized spiking dynamics in 240 photonic artificial neurons, each of which is implemented with a pair of antisymmetrically coupled degenerate optical parametric oscillators.

    • Takahiro Inagaki
    • Kensuke Inaba
    • Hiroki Takesue
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-8
  • Chimera states of coupled oscillators have been the subject of considerable interest in complex nonlinear systems. The authors experimentally observe chimera states in a photonic spiking neural network of identical neurons with homogeneous interactions, suggesting that the system with high controllability provides a novel platform to researching synchronous phenomena.

    • Tumi Makinwa
    • Kensuke Inaba
    • Hiroki Takesue
    ResearchOpen Access
    Communications Physics
    Volume: 6, P: 1-8