Creation of coherence in Bose-Einstein condensates by atom detection

Peter Horak, Stephen M. Barnett

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

We investigate the creation of a relative phase between two Bose-Einstein condensates, initially in number states, by detection of atoms and show how the system approaches a coherent state. Two very distinct time scales are found: one for the creation of the interference is of the order of the detection time for a few single atoms and another, for the preparation of coherent states, is of the order of the detection time for a significant fraction of the total number of atoms. Approximate analytic solutions are derived and compared with exact numerical results.
LanguageEnglish
Pages3421-3436
Number of pages15
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume32
DOIs
Publication statusPublished - 1999

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Bose-Einstein condensates
atoms
interference
preparation

Keywords

  • Bose-Einstein condensates
  • atoms
  • optics
  • atomic physics

Cite this

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Creation of coherence in Bose-Einstein condensates by atom detection. / Horak, Peter; Barnett, Stephen M.

In: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 32, 1999, p. 3421-3436.

Research output: Contribution to journalArticle

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AU - Horak, Peter

AU - Barnett, Stephen M.

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AB - We investigate the creation of a relative phase between two Bose-Einstein condensates, initially in number states, by detection of atoms and show how the system approaches a coherent state. Two very distinct time scales are found: one for the creation of the interference is of the order of the detection time for a few single atoms and another, for the preparation of coherent states, is of the order of the detection time for a significant fraction of the total number of atoms. Approximate analytic solutions are derived and compared with exact numerical results.

KW - Bose-Einstein condensates

KW - atoms

KW - optics

KW - atomic physics

UR - http://arxiv.org/abs/quant-ph/9903024v1

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