Stochastic gauge: a new technique for quantum simulations
P. D. Drummond, P. Deuar, J. F. Corney, K. V. Kheruntsyan
TL;DR
This paper reviews stochastic gauge techniques for simulating quantum dynamics in many-body systems, comparing different approaches and discussing strategies for gauge selection to improve simulation accuracy.
Contribution
It introduces and discusses stochastic gauge methods for quantum simulations, highlighting recent progress and strategies for gauge choice in complex quantum systems.
Findings
Effective stochastic gauge strategies enhance quantum simulation accuracy.
Comparison of master equations, canonical ensembles, and reversible dynamics.
Guidelines for selecting gauges in quantum stochastic simulations.
Abstract
We review progress towards direct simulation of quantum dynamics in many-body systems, using recently developed stochastic gauge techniques. We consider master equations, canonical ensemble calculations and reversible quantum dynamics are compared, as well the general question of strategies for choosing the gauge.
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