Renormalization-group approach to superconductivity: from weak to strong electron-phonon coupling

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dc.creatorTsai, S. -W.
dc.creatorNeto, A. H. Castro
dc.creatorShankar, R.
dc.creatorCampbell, D. K.
dc.date2005-05-17
dc.date.accessioned2026-07-07T08:39:17Z
dc.date.available2026-07-07T08:39:17Z
dc.descriptionWe present the numerical solution of the renormalization group (RG) equations derived in Ref. [1], for the problem of superconductivity in the presence of both electron-electron and electron-phonon coupling at zero temperature. We study the instability of a Fermi liquid to a superconductor and the RG flow of the couplings in presence of retardation effects and the crossover from weak to strong coupling. We show that our numerical results provide an ansatz for the analytic solution of the problem in the asymptotic limits of weak and strong coupling.
dc.description8 pages, 3 figures, conference proceedings for the Electron Correlations and Materials Properties, in Kos, Greece, July 5-9, 2004
dc.identifierhttps://arxiv.org/abs/cond-mat/0505426
dc.identifierhttp://arxiv.org/abs/cond-mat/0505426
dc.identifierPhilosophical Magazine 86, 2631 (2006)
dc.identifierdoi:10.1080/14786830500318928
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/141018
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleRenormalization-group approach to superconductivity: from weak to strong electron-phonon coupling
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