Coherence lifetimes of excitations in an atomic condensate due to the thin spectrum

T. Birol, T. Dereli, Ö E. Müstecaplioǧlu, L. You

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

We study the quantum coherence properties of a finite sized atomic condensate using a toy model and the thin spectrum model formalism. The decoherence time for a condensate in the ground state, nominally taken as a variational symmetry breaking state, is investigated for both zero and finite temperatures. We also consider the lifetimes for Bogoliubov quasiparticle excitations, and contrast them to the observable window determined by the ground-state coherence time. The lifetimes are shown to exhibit a general characteristic dependence on the temperature, determined by the thin spectrum accompanying the spontaneous symmetry breaking ground state.

Original languageEnglish (US)
Article number043616
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume76
Issue number4
DOIs
StatePublished - Oct 16 2007
Externally publishedYes

Fingerprint

Dive into the research topics of 'Coherence lifetimes of excitations in an atomic condensate due to the thin spectrum'. Together they form a unique fingerprint.

Cite this