Journal article icon

Journal article

Observation of the Berezinskii-Kosterlitz-Thouless transition in a two-dimensional Bose gas via matter-wave interferometry

Abstract:

We probe local phase fluctuations of trapped two-dimensional (2D) Bose gases using matter-wave interferometry. This enables us to measure the phase correlation function, which changes from an algebraic to an exponential decay when the system crosses the Berezinskii-Kosterlitz-Thouless (BKT) transition. We determine the temperature dependence of the BKT exponent η and find the critical value ηc = 0.17(3) for our trapped system. Furthermore, we measure the local vortex density as a function of ...

Expand abstract
Publication status:
Published
Peer review status:
Peer reviewed

Actions


Access Document


Files:
Publisher copy:
10.1103/physrevlett.128.250402

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Oxford college:
St Hilda's College
Role:
Author
ORCID:
0000-0002-0969-9909
More by this author
Role:
Author
ORCID:
0000-0001-8881-978X
More by this author
Role:
Author
ORCID:
0000-0001-5647-4051
More by this author
Role:
Author
ORCID:
0000-0003-2574-3081
Expand authors...
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review Letters Journal website
Volume:
128
Issue:
25
Article number:
250402
Publication date:
2022-06-22
Acceptance date:
2022-04-18
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Language:
English
Keywords:
Pubs id:
1264949
Local pid:
pubs:1264949
Deposit date:
2022-06-23

Terms of use


Views and Downloads






If you are the owner of this record, you can report an update to it here: Report update to this record

TO TOP