An explanation for the pseudogap of high-temperature superconductors based on quantum optics

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dc.creatorYu, Deshui
dc.creatorChen, Jingbiao
dc.date2008-11-20
dc.date.accessioned2026-07-07T10:19:43Z
dc.date.available2026-07-07T10:19:43Z
dc.descriptionWe first explain the pseudogap of high-temperature superconductivity based on an approach of quantum optics. After introducing a damping factor for the lifetime $τ$ of quasiparticles, the superconducting dome is naturally produced, and the pseudogap is the consequence of pairing with damped coherence. We derive a new expression of Ginzburg-Landau free energy density, in which a six-order term due to decoherence damping effect is included. Without invoking any microscopic pairing mechanism, this approach provides a simple universal equation of second-order phase transition, which can be reduced to two well-known empirical scaling equations: the superconducting dome Presland-Tallon equation, and the normal-state pseudogap crossover temperature $T^{*}$ line.
dc.description5 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/0811.3262
dc.identifierhttp://arxiv.org/abs/0811.3262
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/174610
dc.subjectSuperconductivity
dc.titleAn explanation for the pseudogap of high-temperature superconductors based on quantum optics
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