Artículo
Non-Fermi liquids at finite temperature: Normal-state and infrared singularities
Fecha de publicación:
16/10/2017
Editorial:
American Physical Society
Revista:
Physical Review B: Condensed Matter and Materials Physics
ISSN:
2469-9950
e-ISSN:
2469-9969
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We analyze quantum criticality at finite temperature for a class of non-Fermi liquids with massless bosons. Finite temperature gives rise to new infrared singularities that invalidate standard perturbative treatments. We show how such divergences are resolved at a nonperturbative level, and obtain the resulting fermion self-energy. This leads to a new "thermal" non-Fermi liquid regime that extends over a wide range of frequencies, and which violates finite temperature scaling laws near quantum critical points. We analyze the resulting quantum critical region and properties of the retarded Green's function. More generally, such effects dominate in the nearly static limit and are expected to have a nontrivial impact on superconductivity and transport.
Palabras clave:
Quantum Criticality
,
Strongly Correlated Systems
,
Non-Fermi Liquids
Archivos asociados
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Identificadores
Colecciones
Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Citación
Wang, Huajia; Torroba, Gonzalo; Non-Fermi liquids at finite temperature: Normal-state and infrared singularities; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 96; 14; 16-10-2017; 1-12
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