Effects of dissipation on a quantum critical point with disorder

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dc.creatorHoyos, J. A.
dc.creatorKotabage, Chetan
dc.creatorVojta, Thomas
dc.date2007-05-14
dc.date2007-12-04
dc.date.accessioned2026-07-07T08:46:36Z
dc.date.available2026-07-07T08:46:36Z
dc.descriptionWe study the effects of dissipation on a disordered quantum phase transition with O$(N)$ order parameter symmetry by applying a strong-disorder renormalization group to the Landau-Ginzburg-Wilson field theory of the problem. We find that Ohmic dissipation results in a non-perturbative infinite-randomness critical point with unconventional activated dynamical scaling while superohmic damping leads to conventional behavior. We discuss applications to the superconductor-metal transition in nanowires and to Hertz' theory of the itinerant antiferromagnetic transition.
dc.description4 pages, 1 figure, final version, as published
dc.identifierhttps://arxiv.org/abs/0705.1865
dc.identifierhttp://arxiv.org/abs/0705.1865
dc.identifierPhys. Rev. Lett. 99, 230601 (2007)
dc.identifierdoi:10.1103/PhysRevLett.99.230601
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/143300
dc.subjectStrongly Correlated Electrons
dc.titleEffects of dissipation on a quantum critical point with disorder
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