Simulation of open quantum systems

TL;DR

This paper introduces a semiclassical simulation method for open quantum systems that efficiently reduces computational complexity by dynamically managing environmental particles near the system.

Contribution

It proposes a localized state expansion and dynamic environmental particle management to improve simulation efficiency for open quantum systems.

Findings

Reduces computational load by focusing on relevant environmental particles.

Enables dynamic addition and removal of environmental particles during simulation.

Provides a scalable approach for simulating open quantum systems.

Abstract

We present an approach for the semiclassical treatment of open quantum systems. An expansion into localized states allows restriction of a simulation to a fraction of the environment that is located within a predefined vicinity of the system. Adding and dropping environmental particles during the simulation yields an effective reduction of the size of the system that is being treated.