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Tan’s two-body contact across the superfluid transition of a planar Bose gas

Authors
  • Zou, Y.-Q.1
  • Bakkali-Hassani, B.1
  • Maury, C.1
  • Le Cerf, É.1
  • Nascimbene, S.1
  • Dalibard, J.1
  • Beugnon, J.1
  • 1 Collège de France, CNRS, ENS-PSL Research University, Sorbonne Université, 11 Place Marcelin Berthelot, Paris, 75005, France , Paris (France)
Type
Published Article
Journal
Nature Communications
Publisher
Springer Nature
Publication Date
Feb 03, 2021
Volume
12
Issue
1
Identifiers
DOI: 10.1038/s41467-020-20647-6
Source
Springer Nature
License
Green

Abstract

Here the authors use Ramsey interferometry to study Tan’s contact in uniform two-dimensional Bose gas of 87Rb atoms across the Berezinskii–Kosterlitz–Thouless superfluid transition. They find that the two-body contact is continuous across the critical point.

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