From Cooper-pairs to resonating bipolarons

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dc.creatorRanninger, Julius
dc.date2006-06-26
dc.date.accessioned2026-07-07T07:12:52Z
dc.date.available2026-07-07T07:12:52Z
dc.descriptionAfter a short review of the different physics in the weak and strong coupling regime, resulting in amplitude fluctuation controlled Cooper pair superconductivity and phase fluctuation controlled superfluidity of tightly bound local polaron pairs, we suggest a scenario for the cross-over regime between those two. It is based on the idea of resonating Bipolarons inside a Fermi sea of uncorrelated electrons, similar to the Feshbach resonance in Fermionic gases in optical traps. Due to the competition between amplitude and phase correlations such systems in the cross-over regime can exhibit a superconductor to insulator transition upon varying the strength of that resonance.
dc.description21 pages, 8 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0606656
dc.identifierhttp://arxiv.org/abs/cond-mat/0606656
dc.identifierProc. Int. School of Physics "E. Fermi", Course CLXI, Eds. G. Iadonisi, J.Ranninger, and G. De Filippis, IOS Press Amsterdam (2006) pp 327-347
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/112230
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleFrom Cooper-pairs to resonating bipolarons
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