Bragg Spectroscopy of Cold Atomic Fermi Gases

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dc.creatorBruun, G. M.
dc.creatorBaym, Gordon
dc.date2006-07-13
dc.date2006-09-20
dc.date.accessioned2026-07-07T07:15:59Z
dc.date.available2026-07-07T07:15:59Z
dc.descriptionWe propose a Bragg spectroscopy experiment to measure the onset of superfluid pairing in ultracold trapped Fermi gases. In particular, we study two component Fermi gases in the weak coupling BCS and BEC limits as well as in the strong coupling unitarity limit. The low temperature Bragg spectrum exhibits a gap directly related to the pair-breaking energy. Furthermore, the Bragg spectrum has a large maximum just below the critical temperature when the gas is superfluid in the BCS limit. In the unitarity regime, we show how the pseudogap in the normal phase leads to a significant suppression of the low frequency Bragg spectrum.
dc.description8 pages, 9 figures. Typos corrected. Reference updated
dc.identifierhttps://arxiv.org/abs/cond-mat/0607334
dc.identifierhttp://arxiv.org/abs/cond-mat/0607334
dc.identifierPRA 74, 033623 (2006)
dc.identifierdoi:10.1103/PhysRevA.74.033623
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/113422
dc.subjectSuperconductivity
dc.titleBragg Spectroscopy of Cold Atomic Fermi Gases
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