Phase and vortex correlations in Josephson-junction arrays at irrational frustration

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dc.creatorGranato, Enzo
dc.date2008-06-16
dc.date.accessioned2026-07-07T09:58:05Z
dc.date.available2026-07-07T09:58:05Z
dc.descriptionPhase coherence and vortex order in a Josephson-junction array at irrational frustration are studied by extensive Monte Carlo simulations using the parallel tempering method. A scaling analysis of the correlation length of phase variables in the full equilibrated system shows that the critical temperature vanishes with a power-law divergent correlation length and critical exponent $ν_{ph}$, in agreement with recent results from resistivity scaling analysis. A similar scaling analysis for vortex variables reveals a different critical exponent $ν_{v}$, suggesting that there are two distinct correlation lengths associated with a decoupled zero-temperature phase transition.
dc.description4 pages, 4 figures, to appear in Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/0806.2654
dc.identifierhttp://arxiv.org/abs/0806.2654
dc.identifierPhys. Rev. Lett. 101, 027004 (2008)
dc.identifierdoi:10.1103/PhysRevLett.101.027004
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/167583
dc.subjectSuperconductivity
dc.titlePhase and vortex correlations in Josephson-junction arrays at irrational frustration
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