Rapid flipping of parametric phase states

Abstract

Since the invention of the solid-state transistor, the overwhelming majority of computers followed the von Neumann architecture that strictly separates logic operations and memory. Today, there is a revived interest in alternative computation models accompanied by the necessity to develop corresponding hardware architectures. The Ising machine, for example, is a variant of the celebrated Hopfield network based on the Ising model. It can be realized with artifcial spins such as the `parametron' that arises in driven nonlinear resonators. The parametron encodes binary information in the phase state of its oscillation. It enables, in principle, logic operations without energy transfer and the corresponding speed limitations. In this work, we experimentally demonstrate flipping of parametron phase states on a timescale of an oscillation period, much faster than the ringdown time τthat is often (erroneously) deemed a fundamental limit for resonator operations. Our work establishes a new paradigm for resonator-based logic architectures.

arXiv comment6 pages, 3 figures

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• Generation of classical non-Gaussian distributions by squeezing a thermal state into non-linear motion of levitated optomechanics
• Slow and fast topological dynamical phase transitions in a Duffing resonator driven by two detuned tones
• Axion field influence on Josephson junction quasipotential
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• Three Strongly Coupled Kerr Parametric Oscillators Forming a Boltzmann Machine
• Controlled bit-flip of period-doubling and discrete time crystalline states in open systems