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arXiv · 1402.5983

Quantum noise in large-scale coherent nonlinear photonic circuits

Charles Santori·Jason S. Pelc·Raymond G. Beausoleil·Nikolas Tezak·Ryan Hamerly·Hideo Mabuchi
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Abstract

A semiclassical simulation approach is presented for studying quantum noise in large-scale photonic circuits incorporating an ideal Kerr nonlinearity. A circuit solver is used to generate matrices defining a set of stochastic differential equations, in which the resonator field variables represent random samplings of the Wigner quasi-probability distributions. Although the semiclassical approach involves making a large-photon-number approximation, tests on one- and two-resonator circuits indicate satisfactory agreement between the semiclassical and full-quantum simulation results in the parameter regime of interest. The semiclassical model is used to simulate random errors in a large-scale circuit that contains 88 resonators and hundreds of components in total, and functions as a 4-bit ripple counter. The error rate as a function of on-state photon number is examined, and it is observed that the quantum fluctuation amplitudes do not increase as signals propagate through the circuit, an important property for scalability.

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Charles Santori, Jason S. Pelc, Raymond G. Beausoleil, Nikolas Tezak, Ryan Hamerly, Hideo Mabuchi. 2014-02-24. Quantum noise in large-scale coherent nonlinear photonic circuits. https://arxiv.org/abs/1402.5983

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