"Cosmological" quasiparticle production in harmonically trapped superfluid gases

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dc.creatorFedichev, Petr O.
dc.creatorFischer, Uwe R.
dc.date2003-03-04
dc.date2004-03-10
dc.date.accessioned2026-07-07T02:50:00Z
dc.date.available2026-07-07T02:50:00Z
dc.descriptionWe show that a variety of cosmologically motivated effective quasiparticle space-times can be produced in harmonically trapped superfluid Bose and Fermi gases. We study the analogue of cosmological particle production in these effective space-times, induced by trapping potentials and coupling constants possessing an arbitrary time dependence. The WKB probabilities for phonon creation from the superfluid vacuum are calculated, and an experimental procedure to detect quasiparticle production by measuring density-density correlation functions is proposed.
dc.description8 pages, 1 figure; references updated, as published in Physical Review A
dc.identifierhttps://arxiv.org/abs/cond-mat/0303063
dc.identifierhttp://arxiv.org/abs/cond-mat/0303063
dc.identifierPhys.Rev. A69 (2004) 033602
dc.identifierdoi:10.1103/PhysRevA.69.033602
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/20972
dc.subjectOther Condensed Matter
dc.subjectGeneral Relativity and Quantum Cosmology
dc.title"Cosmological" quasiparticle production in harmonically trapped superfluid gases
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