Enhanced pairing of quantum critical metals near d=3+1
- Autores
- Fitzpatrick, A. Liam; Kachru, Shamit; Kaplan, Jared; Raghu, S.; Torroba, Gonzalo; Wang, Huajia
- Año de publicación
- 2015
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We study the dynamics of a quantum critical boson coupled to a Fermi surface in intermediate energy regimes where the Landau damping of the boson can be parametrically controlled, either via large Fermi velocity or by large-N techniques. We develop a systematic approach to the BCS instability of such systems, including careful treatment of the enhanced log2 and log3 singularities which appear already at 1-loop. These singularities arise due to the exchange of a critical boson in the Cooper channel and are absent in Fermi liquid theory. We also treat possible instabilities to charge density wave (CDW) formation, and compare the scales BCS and CDW of the onset of the instabilities in different parametric regimes. We address the question of whether the dressing of the fermions into a non-Fermi liquid via interactions with the order parameter field can happen at energies >BCS,CDW.
Fil: Fitzpatrick, A. Liam. University of Stanford; Estados Unidos
Fil: Kachru, Shamit. University of Stanford; Estados Unidos
Fil: Kaplan, Jared. University Johns Hopkins; Estados Unidos
Fil: Raghu, S.. University of Stanford; Estados Unidos
Fil: Torroba, Gonzalo. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Wang, Huajia. University of Stanford; Estados Unidos - Materia
-
Superconductivity
Quantum Metals
Non-Fermi Liquid - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/54195
Ver los metadatos del registro completo
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Enhanced pairing of quantum critical metals near d=3+1Fitzpatrick, A. LiamKachru, ShamitKaplan, JaredRaghu, S.Torroba, GonzaloWang, HuajiaSuperconductivityQuantum MetalsNon-Fermi Liquidhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study the dynamics of a quantum critical boson coupled to a Fermi surface in intermediate energy regimes where the Landau damping of the boson can be parametrically controlled, either via large Fermi velocity or by large-N techniques. We develop a systematic approach to the BCS instability of such systems, including careful treatment of the enhanced log2 and log3 singularities which appear already at 1-loop. These singularities arise due to the exchange of a critical boson in the Cooper channel and are absent in Fermi liquid theory. We also treat possible instabilities to charge density wave (CDW) formation, and compare the scales BCS and CDW of the onset of the instabilities in different parametric regimes. We address the question of whether the dressing of the fermions into a non-Fermi liquid via interactions with the order parameter field can happen at energies >BCS,CDW.Fil: Fitzpatrick, A. Liam. University of Stanford; Estados UnidosFil: Kachru, Shamit. University of Stanford; Estados UnidosFil: Kaplan, Jared. University Johns Hopkins; Estados UnidosFil: Raghu, S.. University of Stanford; Estados UnidosFil: Torroba, Gonzalo. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Wang, Huajia. University of Stanford; Estados UnidosAmerican Physical Society2015-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/54195Fitzpatrick, A. Liam; Kachru, Shamit; Kaplan, Jared; Raghu, S.; Torroba, Gonzalo; et al.; Enhanced pairing of quantum critical metals near d=3+1; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 92; 4; 7-2015; 1-14; 0451181098-0121CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.92.045118info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.92.045118info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:29:22Zoai:ri.conicet.gov.ar:11336/54195instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:29:22.364CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Enhanced pairing of quantum critical metals near d=3+1 |
title |
Enhanced pairing of quantum critical metals near d=3+1 |
spellingShingle |
Enhanced pairing of quantum critical metals near d=3+1 Fitzpatrick, A. Liam Superconductivity Quantum Metals Non-Fermi Liquid |
title_short |
Enhanced pairing of quantum critical metals near d=3+1 |
title_full |
Enhanced pairing of quantum critical metals near d=3+1 |
title_fullStr |
Enhanced pairing of quantum critical metals near d=3+1 |
title_full_unstemmed |
Enhanced pairing of quantum critical metals near d=3+1 |
title_sort |
Enhanced pairing of quantum critical metals near d=3+1 |
dc.creator.none.fl_str_mv |
Fitzpatrick, A. Liam Kachru, Shamit Kaplan, Jared Raghu, S. Torroba, Gonzalo Wang, Huajia |
author |
Fitzpatrick, A. Liam |
author_facet |
Fitzpatrick, A. Liam Kachru, Shamit Kaplan, Jared Raghu, S. Torroba, Gonzalo Wang, Huajia |
author_role |
author |
author2 |
Kachru, Shamit Kaplan, Jared Raghu, S. Torroba, Gonzalo Wang, Huajia |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Superconductivity Quantum Metals Non-Fermi Liquid |
topic |
Superconductivity Quantum Metals Non-Fermi Liquid |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
We study the dynamics of a quantum critical boson coupled to a Fermi surface in intermediate energy regimes where the Landau damping of the boson can be parametrically controlled, either via large Fermi velocity or by large-N techniques. We develop a systematic approach to the BCS instability of such systems, including careful treatment of the enhanced log2 and log3 singularities which appear already at 1-loop. These singularities arise due to the exchange of a critical boson in the Cooper channel and are absent in Fermi liquid theory. We also treat possible instabilities to charge density wave (CDW) formation, and compare the scales BCS and CDW of the onset of the instabilities in different parametric regimes. We address the question of whether the dressing of the fermions into a non-Fermi liquid via interactions with the order parameter field can happen at energies >BCS,CDW. Fil: Fitzpatrick, A. Liam. University of Stanford; Estados Unidos Fil: Kachru, Shamit. University of Stanford; Estados Unidos Fil: Kaplan, Jared. University Johns Hopkins; Estados Unidos Fil: Raghu, S.. University of Stanford; Estados Unidos Fil: Torroba, Gonzalo. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Wang, Huajia. University of Stanford; Estados Unidos |
description |
We study the dynamics of a quantum critical boson coupled to a Fermi surface in intermediate energy regimes where the Landau damping of the boson can be parametrically controlled, either via large Fermi velocity or by large-N techniques. We develop a systematic approach to the BCS instability of such systems, including careful treatment of the enhanced log2 and log3 singularities which appear already at 1-loop. These singularities arise due to the exchange of a critical boson in the Cooper channel and are absent in Fermi liquid theory. We also treat possible instabilities to charge density wave (CDW) formation, and compare the scales BCS and CDW of the onset of the instabilities in different parametric regimes. We address the question of whether the dressing of the fermions into a non-Fermi liquid via interactions with the order parameter field can happen at energies >BCS,CDW. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-07 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/54195 Fitzpatrick, A. Liam; Kachru, Shamit; Kaplan, Jared; Raghu, S.; Torroba, Gonzalo; et al.; Enhanced pairing of quantum critical metals near d=3+1; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 92; 4; 7-2015; 1-14; 045118 1098-0121 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/54195 |
identifier_str_mv |
Fitzpatrick, A. Liam; Kachru, Shamit; Kaplan, Jared; Raghu, S.; Torroba, Gonzalo; et al.; Enhanced pairing of quantum critical metals near d=3+1; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 92; 4; 7-2015; 1-14; 045118 1098-0121 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.92.045118 info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.92.045118 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
American Physical Society |
publisher.none.fl_str_mv |
American Physical Society |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1846083433456992256 |
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12.891075 |