Long Phase Coherence Time and Number Squeezing of two Bose-Einstein Condensates on an Atom Chip

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dc.creatorJo, G. -B.
dc.creatorShin, Y.
dc.creatorWill, S.
dc.creatorPasquini, T. A.
dc.creatorSaba, M.
dc.creatorKetterle, W.
dc.creatorPritchard, D. E.
dc.creatorVengalattore, M.
dc.creatorPrentiss, M.
dc.date2006-08-27
dc.date2007-05-19
dc.date.accessioned2026-07-07T08:02:09Z
dc.date.available2026-07-07T08:02:09Z
dc.descriptionWe measured the relative phase of two Bose-Einstein condensates confined in an radio frequency induced double well potential on an atom chip. We observed phase coherence between the separated condensates for times up to 200 ms after splitting, a factor of 10 beyond the phase diffusion limit expected for a coherent state in our experimental conditions (20 ms). The enhanced coherence time is attributed to number squeezing of the initial state by a factor of 10. In addition, we demonstrated a rotationally sensitive (Sagnac) geometry for a guided atom interferometer by propagating the split condensates.
dc.description5 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0608585
dc.identifierhttp://arxiv.org/abs/cond-mat/0608585
dc.identifierPhy. Rev. Lett. 98, 030407 (2007)
dc.identifierdoi:10.1103/PhysRevLett.98.030407
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/129141
dc.subjectOther Condensed Matter
dc.titleLong Phase Coherence Time and Number Squeezing of two Bose-Einstein Condensates on an Atom Chip
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