Inhomogeneously doped two-leg ladder systems

Simple item page
dc.creatorWessel, Stefan
dc.creatorIndergand, Martin
dc.creatorLaeuchli, Andreas
dc.creatorLedermann, Urs
dc.creatorSigrist, Manfred
dc.date2002-06-18
dc.date2003-04-11
dc.date.accessioned2026-07-07T02:45:54Z
dc.date.available2026-07-07T02:45:54Z
dc.descriptionA chemical potential difference between the legs of a two-leg ladder is found to be harmful for Cooper pairing. The instability of superconductivity in such systems is analyzed by compairing results of various analytical and numerical methods. Within a strong coupling approach for the t-J model, supplemented by exact numerical diagonalization, hole binding is found unstable beyond a finite, critical chemical potential difference. The spinon-holon mean field theory for the t-J model shows a clear reduction of the the BCS gaps upon increasing the chemical potential difference leading to a breakdown of superconductivity. Based on a renormalization group approach and Abelian bosonization, the doping dependent phase diagram for the weakly interacting Hubbard model with different chemical potentials was determined.
dc.descriptionRevtex4, 11 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0206344
dc.identifierhttp://arxiv.org/abs/cond-mat/0206344
dc.identifierPhys. Rev. B 67, 184517 (2003)
dc.identifierdoi:10.1103/PhysRevB.67.184517
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/19469
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleInhomogeneously doped two-leg ladder systems
dc.typetext

Files

Collections

arXiv