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Noise induced interference fringes in trapped ultracold bosonic gases

Authors
  • Anderloni, S.
  • Benatti, F.
  • Floreanini, R.
  • Guerreschi, G. G.
Type
Preprint
Publication Date
Nov 18, 2008
Submission Date
Nov 18, 2008
Identifiers
DOI: 10.1103/PhysRevA.78.052118
Source
arXiv
License
Yellow
External links

Abstract

We study the dynamics of ultracold atoms trapped in optical double-well potentials in presence of noise generated by an external environment. When prepared in a Fock number state, the system shows phase coherence in the averaged density profile obtained using standard absorption image techniques, that disappears in absence of noise. This effect indicates that also in many-body systems an external environment may enhance quantum coherence, instead of destroying it.

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