PreprintarXiv licencearXiv
Entropic-ordered superfluid
Abstract
We present a minimal classical lattice model of superfluidity at arbitrarily high temperatures, using a modified three-dimensional XY model with ``soft" rotors. The global U(1) symmetry is spontaneously broken above a positive critical temperature due to entropic order. We study hydrodynamics in this high-temperature regime and verify consistency with the fluctuation-dissipation theorem, explaining how the large noise variance at very high temperatures is not sufficient to destroy superfluidity or the long lifetime of Goldstone modes.
Related
BibTeX
@misc{zane2026entropicordered,
title = {{Entropic-ordered superfluid}},
author = {Isabella Zane and Andrew Lucas},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.12635},
eprint = {2610.12635},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.12635},
}
RIS
TY - UNPB
TI - Entropic-ordered superfluid
AU - Isabella Zane
AU - Andrew Lucas
PY - 2026
DA - 2026/10/08
PB - arXiv
DO - 10.48550/arxiv.2610.12635
UR - https://arxiv.org/abs/2610.12635
AB - We present a minimal classical lattice model of superfluidity at arbitrarily high temperatures, using a modified three-dimensional XY model with ``soft" rotors. The global U(1) symmetry is spontaneously broken above a positive critical temperature due to entropic order. We study hydrodynamics in this high-temperature regime and verify consistency with the fluctuation-dissipation theorem, explaining how the large noise variance at very high temperatures is not sufficient to destroy superfluidity or the long lifetime of Goldstone modes.
ER -