Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2404.05460 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866916416458850304 |
|---|---|
| author | Sharma, Rishabh Rey, David Longchambon, Laurent Perrin, Aurélien Perrin, Hélène Dubessy, Romain |
| author_facet | Sharma, Rishabh Rey, David Longchambon, Laurent Perrin, Aurélien Perrin, Hélène Dubessy, Romain |
| contents | We report the observation of the melting of a vortex lattice in a fast rotating quasi-two dimensional Bose gas, under the influence of thermal fluctuations. We image the vortex lattice after a time-of-flight expansion, for increasing rotation frequency at constant atom number and temperature. We detect the vortex positions and study the order of the lattice using the pair correlation function and the orientational correlation function. We evidence the melting transition by an abrupt change in the decay of orientational correlations, associated to a proliferation of dislocations. Our findings are consistent with the hexatic to liquid transition in the KTHNY scenario for two-dimensional melting. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_05460 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Thermal melting of a vortex lattice in a quasi two-dimensional Bose gas Sharma, Rishabh Rey, David Longchambon, Laurent Perrin, Aurélien Perrin, Hélène Dubessy, Romain Quantum Gases We report the observation of the melting of a vortex lattice in a fast rotating quasi-two dimensional Bose gas, under the influence of thermal fluctuations. We image the vortex lattice after a time-of-flight expansion, for increasing rotation frequency at constant atom number and temperature. We detect the vortex positions and study the order of the lattice using the pair correlation function and the orientational correlation function. We evidence the melting transition by an abrupt change in the decay of orientational correlations, associated to a proliferation of dislocations. Our findings are consistent with the hexatic to liquid transition in the KTHNY scenario for two-dimensional melting. |
| title | Thermal melting of a vortex lattice in a quasi two-dimensional Bose gas |
| topic | Quantum Gases |
| url | https://arxiv.org/abs/2404.05460 |