Dissipation-Driven Breakdown of Universality in Two-Dimensional Superconductors

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dc.creatorVoelker, Klaus
dc.date1999-11-30
dc.date.accessioned2026-07-07T03:15:21Z
dc.date.available2026-07-07T03:15:21Z
dc.descriptionThe influence of gapless dissipative degrees of freedom on the superconductor-insulator transition in two dimensions is investigated. We develop a series expansion for the free energy of a (2+1)-dimensional XY model coupled to a bosonic heat bath that can be approximately summed to all orders. The calculation explicitly conserves topological excitations. We derive the zero temperature phase diagram and the free energy critical exponent, and find a transition from universal to non-universal scaling behavior as the coupling to the dissipative environment is increased, implying the existence of a new universality class.
dc.description4 pages including 2 figures; to be submitted to Physical Review Letters
dc.identifierhttps://arxiv.org/abs/cond-mat/9911473
dc.identifierhttp://arxiv.org/abs/cond-mat/9911473
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/29995
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleDissipation-Driven Breakdown of Universality in Two-Dimensional Superconductors
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