Monte Carlo study of the superfluid phase of $^4$He
Abstract
Detailed numerical results obtained with state-of-the-art Quantum Monte Carlo (QMC) simulations are presented for the superfluid phase of He at saturated vapor pressure. The aim of this contribution is that of providing reliable, up-to-date estimates for this archetypal superfluid, reflecting the methodological progress that has taken place over the past two decades. We simulate a system comprising 2,048 helium atoms, i.e., an order of magnitude greater in size than those for which results currently regarded as standard references were originally obtained. We offer revised estimates for energetic and structural properties, as well as for the ground state condensate fraction.
Keywords
Cite
@article{arxiv.2605.00629,
title = {Monte Carlo study of the superfluid phase of $^4$He},
author = {Massimo Boninsegni},
journal= {arXiv preprint arXiv:2605.00629},
year = {2026}
}
Comments
To appear in J. Phys. Conference Series as part of the Proceedings of the Phenikaa International Physics Conference held in Hanoi, October 2025