Mostrar el registro sencillo del ítem

dc.contributor.author
Aguilera Damia, Jeremías  
dc.contributor.author
Kachru, Shamit  
dc.contributor.author
Raghu, Srinivas  
dc.contributor.author
Torroba, Gonzalo  
dc.date.available
2021-01-21T17:55:15Z  
dc.date.issued
2019-08-29  
dc.identifier.citation
Aguilera Damia, Jeremías; Kachru, Shamit; Raghu, Srinivas; Torroba, Gonzalo; Two-Dimensional Non-Fermi-Liquid Metals: A Solvable Large-N Limit; American Physical Society; Physical Review Letters; 123; 9; 29-8-2019; 1-6  
dc.identifier.issn
0031-9007  
dc.identifier.uri
http://hdl.handle.net/11336/123336  
dc.description.abstract
Significant effort has been devoted to the study of “non-Fermi-liquid” (NFL) metals: gapless conducting systems that lack a quasiparticle description. One class of NFL metals involves a finite density of fermions interacting with soft order parameter fluctuations near a quantum critical point. The problem has been extensively studied in a large-N limit (N corresponding to the number of fermion flavors) where universal behavior can be obtained by solving a set of coupled saddle-point equations. However, a remarkable study by Lee revealed the breakdown of such approximations in two spatial dimensions. We show that an alternate approach, in which the fermions belong to the fundamental representation of a global SUðNÞ flavor symmetry, while the order parameter fields transform under the adjoint representation (a “matrix large-N” theory), yields a tractable large N limit. At low energies, the system consists of an overdamped boson with dynamical exponent z ¼ 3 coupled to a non-Fermi-liquid with self-energy ΣðωÞ ∼ ω2=3 , consistent with previous studies.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
American Physical Society  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/  
dc.subject
non-fermi liquids  
dc.subject
large N limit  
dc.subject
quantum critical point  
dc.subject.classification
Física de los Materiales Condensados  
dc.subject.classification
Ciencias Físicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Two-Dimensional Non-Fermi-Liquid Metals: A Solvable Large-N Limit  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2020-12-16T18:19:14Z  
dc.identifier.eissn
1079-7114  
dc.journal.volume
123  
dc.journal.number
9  
dc.journal.pagination
1-6  
dc.journal.pais
Estados Unidos  
dc.description.fil
Fil: Aguilera Damia, Jeremías. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.description.fil
Fil: Kachru, Shamit. University of Stanford; Estados Unidos  
dc.description.fil
Fil: Raghu, Srinivas. Slac National Accelerator Laboratory; Estados Unidos. University of Stanford; Estados Unidos  
dc.description.fil
Fil: Torroba, Gonzalo. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.journal.title
Physical Review Letters  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevLett.123.096402  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.123.096402