Quantum Gibbs ensemble Monte Carlo

Abstract

We present a path integral Monte Carlo method which is the full quantum analogue of the Gibbs ensemble Monte Carlo method of Panagiotopoulos to study the gas-liquid coexistence line of a classical fluid. Unlike previous extensions of Gibbs ensemble Monte Carlo to include quantum effects, our scheme is viable even for systems with strong quantum delocalization in the degenerate regime of temperature. This is demonstrated by an illustrative application to the gas-superfluid transition of ${}^4$He in two dimensions.

7 pages, 5 figures, 2 tables

References in corpus (3)

• Worm Algorithm and Diagrammatic Monte Carlo: A New Approach to Continuous-Space Path Integral Monte Carlo Simulations
• Phase diagram of the penetrable square well-model
• Gas-liquid coexistence for the bosons square-well fluid and the $\mbox{}^4$He binodal anomaly