Interference of an array of independent bose-einstein condensates with fixed number of atoms

Satoshi Ando, Kazuya Yuasa, Mauro Iazzi

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Interference of an array of independent Bose-Einstein condensates, whose experiment has been performed recently, is theoretically studied in detail. Even if the number of the atoms in each gas is kept finite and the phases of the gases are not well-defined, interference fringes are observed on each snapshot. The statistics of the snapshot interference patterns, i.e. the average fringe amplitudes and their fluctuations (covariance), are computed analytically, and concise formulas for their asymptotic values for long time of flight are derived. Processes contributing to these quantities are clarified and the relationship with the description on the basis of the symmetry-breaking scenario is revealed.

Original languageEnglish
Pages (from-to)431-443
Number of pages13
JournalInternational Journal of Quantum Information
Volume9
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 2011 Jan 1

Keywords

  • Bose-Einstein condensation
  • Hanbury Brown and Twiss effect
  • interference
  • snapshot
  • spontaneous symmetry breaking

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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