Quantum critical behavior near a density-wave instability in an isotropic Fermi liquid

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dc.creatorChubukov, Andrey V.
dc.creatorGalitski, Victor
dc.creatorYakovenko, Victor M.
dc.date2004-05-16
dc.date2005-02-09
dc.date.accessioned2026-07-07T08:54:03Z
dc.date.available2026-07-07T08:54:03Z
dc.descriptionWe study the quantum critical behavior in an isotropic Fermi liquid in the vicinity of a zero-temperature density-wave transition at a finite wave vector q_c. We show that, near the transition, the Landau damping of the soft bosonic mode yields a crossover in the fermionic self-energy from Sigma(k,omega) ~ Sigma(k) to Sigma(k,omega) ~ Sigma(omega), where k and omega are momentum and frequency. Because of this self-generated locality, the fermionic effective mass diverges right at the quantum critical point, not before, i.e., the Fermi liquid survives up to the critical point.
dc.description4 pages, 1 figures, REVTeX 4; v.2 - as published in PRL
dc.identifierhttps://arxiv.org/abs/cond-mat/0405344
dc.identifierhttp://arxiv.org/abs/cond-mat/0405344
dc.identifierPhys. Rev. Lett. 94, 046404 (2005)
dc.identifierdoi:10.1103/PhysRevLett.94.046404
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/145793
dc.subjectStrongly Correlated Electrons
dc.titleQuantum critical behavior near a density-wave instability in an isotropic Fermi liquid
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