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Spatial entanglement from off-diagonal long-range order in a Bose-Einstein condensate

Abstract:
We investigate spatial entanglement-particle-number entanglement between regions of space-in an ideal bosonic gas. We quantify the amount of spatial entanglement around the transition temperature for condensation (TC) by probing the gas with two localized two-level systems. We show that spatial entanglement in the gas is directly related to filling of the ground-state energy level and therefore to the off-diagonal long-range order of the system and the onset of condensation. © 2007 The American Physical Society.
Publication status:
Published

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Publisher copy:
10.1103/PhysRevA.76.053605

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Atomic & Laser Physics
Role:
Author
Journal:
PHYSICAL REVIEW A More from this journal
Volume:
76
Issue:
5
Publication date:
2007-11-01
DOI:
EISSN:
1094-1622
ISSN:
1050-2947
Language:
English
Pubs id:
pubs:158026
UUID:
uuid:05cffeb3-018e-4c06-819c-8594ad4578a8
Local pid:
pubs:158026
Source identifiers:
158026
Deposit date:
2012-12-19

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