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Suppression of Superfluidity upon Overflow of Trapped Fermions. Quantal and Thomas-Fermi Studies

Abstract : Two issues are treated in this work: (i) the generic fact that if a fermionic superfluid in the BCS regime overflows from a narrow container into a much wider one, pairing is much suppressed at the overflow point. Physical examples where this feature may play an important role are discussed (ii) A Thomas-Fermi (TF) approach to inhomogeneous superfluid Fermi-systems is presented and shown that it works well in cases where the Local Density Approximation (LDA) breaks down.
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Submitted on : Tuesday, October 18, 2011 - 1:37:37 PM
Last modification on : Wednesday, September 16, 2020 - 4:07:56 PM

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P. Schuck, X. Viñas. Suppression of Superfluidity upon Overflow of Trapped Fermions. Quantal and Thomas-Fermi Studies. Physical Review Letters, American Physical Society, 2011, ⟨10.1103/PhysRevLett.107.205301⟩. ⟨in2p3-00633363⟩

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