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The role of Causality in Tunable Fermi Gas Condensates
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The role of Causality in Tunable Fermi Gas Condensates
classification
gr-qc
cond-mat.quant-gas
keywords
condensatescreationfermispontaneousatomscausalitycoldcurved
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We develop a new formalism for the description of the condensates of cold Fermi atoms whose speed of sound can be tuned with the aid of a narrow Feshbach resonance. We use this to look for spontaneous phonon creation that mimics spontaneous particle creation in curved space-time in Friedmann-Robertson-Walker and other model universes.
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