Characterizing supersolid phase transitions in trapped quantum gases with tilted dipoles at finite temperature
Abstract
Motivated by a recent experimental work arXiv:2608.20327, we theoretically investigate the nature of phase transitions in a trapped dipolar quantum gas upon tuning the contact interaction strength and dipole orientation. Using extended Gross-Pitaevskii simulations including thermal and quantum effects, we map the phase diagram comprising unmodulated superfluids, triangular droplet arrays, and stripe states. We further characterize the order of the transitions separating them through imaginary-time hysteresis analysis. The unmodulated-to-modulated transition evolves from discontinuous to continuous with increasing dipole tilt before becoming discontinuous again at large tilts. The degree of continuity is further affected by particle number, temperature, and confinement. While continuous behavior generally correlates with the emergence of stripe states, this correspondence is not systematic, and finite-size effects also influence the continuity of the transition. The triangular-to-stripe transition is found to be discontinuous at small contact interaction strengths and becomes increasingly continuous upon approaching the unmodulated-to-modulated phase boundary. Our results reveal a tunable transition order in finite dipolar quantum gases and provide guidance for its experimental investigation.
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BibTeX
@misc{kusch2026characterizing,
title = {{Characterizing supersolid phase transitions in trapped quantum gases with tilted dipoles at finite temperature}},
author = {Julian Kusch and Lauriane Chomaz and Wyatt Kirkby},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.28621},
eprint = {2610.28621},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.28621},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Characterizing supersolid phase transitions in trapped quantum gases with tilted dipoles at finite temperature
AU - Julian Kusch
AU - Lauriane Chomaz
AU - Wyatt Kirkby
PY - 2026
DA - 2026/10/20
PB - arXiv
DO - 10.48550/arxiv.2610.28621
UR - https://arxiv.org/abs/2610.28621
AB - Motivated by a recent experimental work arXiv:2608.20327, we theoretically investigate the nature of phase transitions in a trapped dipolar quantum gas upon tuning the contact interaction strength and dipole orientation. Using extended Gross-Pitaevskii simulations including thermal and quantum effects, we map the phase diagram comprising unmodulated superfluids, triangular droplet arrays, and stripe states. We further characterize the order of the transitions separating them through imaginary-time hysteresis analysis. The unmodulated-to-modulated transition evolves from discontinuous to continuous with increasing dipole tilt before becoming discontinuous again at large tilts. The degree of continuity is further affected by particle number, temperature, and confinement. While continuous behavior generally correlates with the emergence of stripe states, this correspondence is not systematic, and finite-size effects also influence the continuity of the transition. The triangular-to-stripe transition is found to be discontinuous at small contact interaction strengths and becomes increasingly continuous upon approaching the unmodulated-to-modulated phase boundary. Our results reveal a tunable transition order in finite dipolar quantum gases and provide guidance for its experimental investigation.
ER -