Vortex-pair unbinding in the normal state of two-dimensional, short coherence-length superconductors

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dc.creatorEngelbrecht, Jan R.
dc.creatorNazarenko, Alexander B.
dc.date1998-06-18
dc.date.accessioned2026-07-07T03:10:51Z
dc.date.available2026-07-07T03:10:51Z
dc.descriptionWe study the superconducting transition in the attractive Hubbard model in two dimensions using the self-consistent $T$-matrix approximation. We demonstrate that for large system sizes, this approximate method produces XY critical scaling in the correlation length and pair susceptibility. For the parameters we investigate, the critical regime is quite large, extending beyond 5 times $\TKTB$. We discuss the role of vortex-pair unbinding in the normal state in the context of pseudogap behaviour and the relevance to the physics of underdoped cuprates.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/9806223
dc.identifierhttp://arxiv.org/abs/cond-mat/9806223
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/28363
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleVortex-pair unbinding in the normal state of two-dimensional, short coherence-length superconductors
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