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Entanglement spectrum: Identification of the transition from vortex-liquid to vortex-lattice state in a weakly interacting rotating Bose-Einstein condensate

Abstract:

We use entanglement to investigate the transition from vortex-liquid phase to vortex-lattice phase in a weakly interacting rotating Bose-Einstein condensate. For the torus geometry, the ground-state entanglement spectrum is analyzed to distinguish these two phases. The low-lying part of the ground-state entanglement spectrum, as well as the behavior of its lowest level, changes clearly when the transition occurs. For the sphere geometry, the entanglement gap in the conformal limit is also stu...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevA.83.013620

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Role:
Author
Journal:
PHYSICAL REVIEW A
Volume:
83
Issue:
1
Publication date:
2011-01-24
DOI:
EISSN:
1094-1622
ISSN:
1050-2947
Source identifiers:
118145
Language:
English
Pubs id:
pubs:118145
UUID:
uuid:1c15ec37-93c9-4d6a-9114-1ef27ebf12dc
Local pid:
pubs:118145
Deposit date:
2012-12-19

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