Generalized Cooper pairing and Bose-Einstein condensation

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dc.creatorAguilera-Navarro, V. C.
dc.creatorFortes, M.
dc.creatorde Llano, M.
dc.date2003-06-30
dc.date.accessioned2026-07-07T02:52:07Z
dc.date.available2026-07-07T02:52:07Z
dc.descriptionA Bethe-Salpeter treatment of Cooper pairs (CPs) based on an ideal Fermi gas (IFG) "sea"' yields the familiar negative-energy, two-particle bound-state if two-hole CPs are ignored, but is meaningless otherwise as it gives purely-imaginary energies. However, when based on the BCS ground state, legitimate two-particle "moving" CPs emerge but as positive-energy, finite-lifetime resonances for nonzero center-of-mass momentum, with a \textit{linear}dispersion leading term. Bose-Einstein condensation of such pairs may thus occur in exactly two dimensions as it cannot with quadratic dispersion.
dc.identifierhttps://arxiv.org/abs/cond-mat/0306726
dc.identifierhttp://arxiv.org/abs/cond-mat/0306726
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/21717
dc.subjectSuperconductivity
dc.titleGeneralized Cooper pairing and Bose-Einstein condensation
dc.typetext

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