Monte Carlo algorithms for charged lattice gases

TL;DR

This paper investigates Monte Carlo algorithms for simulating charged lattice gases, identifies low-temperature mobility issues caused by particle trails, and proposes modified updates to enhance efficiency.

Contribution

It introduces new Monte Carlo update methods that significantly improve simulation efficiency for charged lattice gases at low temperatures.

Findings

Poor particle mobility at low temperatures due to trails.

Modified updates reduce the formation of trails.

Enhanced algorithm efficiency in low-temperature regimes.

Abstract

We consider Monte Carlo algorithms for the simulation of charged lattice gases with purely local dynamics. We study the mobility of particles as a function of temperature and show that the poor mobility of particles at low temperatures is due to "trails" or "strings" left behind after particle motion. We introduce modified updates which substantially improve the efficiency of the algorithm in this regime.