A wave-function Monte Carlo method for simulating conditional master equations

TL;DR

This paper introduces a novel wave-function Monte Carlo method tailored for simulating quantum systems under continuous measurement, overcoming limitations of standard methods and demonstrated through nano-resonator simulations.

Contribution

The paper presents a new Monte Carlo approach specifically designed for continuous measurement scenarios in quantum systems, extending simulation capabilities.

Findings

Successfully simulated a continuously measured nano-resonator

Overcame limitations of standard wave-function Monte Carlo methods

Validated the new method with prior experimental data

Abstract

Wave-function Monte Carlo methods are an important tool for simulating quantum systems, but the standard method cannot be used to simulate decoherence in continuously measured systems. Here we present a new Monte Carlo method for such systems. This was used to perform the simulations of a continuously measured nano-resonator in [Phys. Rev. Lett. 102, 057208 (2009)].