Spectroscopic insensitivity to cold collisions in a two-state mixture of fermions

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dc.creatorZwierlein, Martin W.
dc.creatorHadzibabic, Zoran
dc.creatorGupta, Subhadeep
dc.creatorKetterle, Wolfgang
dc.date2003-06-25
dc.date2003-10-07
dc.date.accessioned2026-07-07T02:52:01Z
dc.date.available2026-07-07T02:52:01Z
dc.descriptionWe have experimentally demonstrated the absence of spectroscopic resonance shifts in a mixture of two interacting Fermi gases. This result is linked to observations in an ultracold gas of thermal bosons. There, the measured resonance shift due to interstate collisions is independent of the coherence in the system, and twice that expected from the equilibrium energy splitting between the two states in a fully decohered cloud. We give a simple theoretical explanation of these observations, which elucidates the effect of coherent radiation on an incoherent mixture of atoms.
dc.identifierhttps://arxiv.org/abs/cond-mat/0306627
dc.identifierhttp://arxiv.org/abs/cond-mat/0306627
dc.identifierPhys. Rev. Lett. 91, 250404 (2003)
dc.identifierdoi:10.1103/PhysRevLett.91.250404
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/21687
dc.subjectSoft Condensed Matter
dc.subjectStatistical Mechanics
dc.titleSpectroscopic insensitivity to cold collisions in a two-state mixture of fermions
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