Interference between independent fluctuating condensates

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dc.creatorPolkovnikov, Anatoli
dc.creatorAltman, Ehud
dc.creatorDemler, Eugene
dc.date2005-11-28
dc.date2006-04-08
dc.date.accessioned2026-07-07T06:49:26Z
dc.date.available2026-07-07T06:49:26Z
dc.descriptionWe consider a problem of interference between two independent condensates, which lack true long range order. We show that their interference pattern contains information about correlation functions within each condensate. As an example we analyze the interference between a pair of one dimensional interacting Bose liquids. We find universal scaling of the average fringe contrast with system size and temperature that depends only on the Luttinger parameter. Moreover the full distribution of the fringe contrast, which is also equivalent to the full counting statistics of the interfering atoms, changes with interaction strength and lends information on high order correlation functions. We also demonstrate that the interference between two-dimensional condensates at finite temperature can be used as a direct probe of the Kosterlitz-Thouless transition. Finally, we discuss generalization of our results to describe the intereference of a periodic array of independent fluctuating condensates.
dc.description7 pages, 3 figures, published version
dc.identifierhttps://arxiv.org/abs/cond-mat/0511675
dc.identifierhttp://arxiv.org/abs/cond-mat/0511675
dc.identifierPNAS 103, 6125 (2006)
dc.identifierdoi:10.1073/pnas.0510276103
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/104343
dc.subjectStatistical Mechanics
dc.titleInterference between independent fluctuating condensates
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