Tools
ToolsKirkby, Wyatt, Salman, Hayder, Gasenzer, Thomas and Chomaz, Lauriane (2025) Kibble-Zurek scaling of the superfluid-supersolid transition in an elongated dipolar gas. Physical Review Research, 7 (2).
Preview |
PDF (x51r-vdyf)
- Published Version
Available under License Creative Commons Attribution. Download (3MB) | Preview |
Abstract
We simulate interaction quenches crossing from a superfluid to a supersolid state in a dipolar quantum gas of Dy164 atoms, trapped in an elongated tube with periodic boundary conditions, via the extended Gross-Pitaevskii equation. A freeze-out time is observed through a delay in supersolid formation after crossing the critical point. We compute the density-density correlations at the freeze-out time and extract the frozen correlation length for the solid order. An analysis of the freeze-out time and correlation length versus the interaction quench rate allows us to extract universal exponents corresponding to the relaxation time and correlation length based on predictions of the Kibble-Zurek mechanism. Over several orders of magnitude, clear power-law scaling is observed for both the freeze-out time and the correlation length, and the corresponding exponents are compatible with predictions based on the excitation spectrum calculated via Bogoliubov theory. Defects due to independent local breaking of translational symmetry, contributing to globally incommensurate supersolid order, are identified, and their number at the freeze-out time is found to also scale as a power law. Our results support the hypothesis of a continuous transition whose universality class remains to be determined but appears to differ from that of the (1 + 1)-dimensional XY model.
| Item Type: | Article |
|---|---|
| Additional Information: | Publisher Copyright: © 2025 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. |
| Uncontrolled Keywords: | cond-mat.quant-gas,hep-ph |
| Faculty \ School: | Faculty of Science > School of Engineering, Mathematics and Physics |
| UEA Research Groups: | Faculty of Science > Research Groups > Centre for Photonics and Quantum Science (former - to 2025) Faculty of Science > Research Groups > Fluids & Structures Faculty of Science > Research Groups > Quantum Matter |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 12 Jun 2025 13:30 |
| Last Modified: | 11 Dec 2025 16:30 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/99499 |
| DOI: | 10.1103/x51r-vdyf |
Downloads
Downloads per month over past year
Actions (login required)
 |
View Item |