Pomeranchuk instabilities in holographic metals

We develop a method to detect instabilities leading to nematic phases in strongly coupled metallic systems. We do so by adapting the well-known Pomeranchuk technique to a weakly coupled system of fermions in a curved asymptotically AdS bulk. The resulting unstable modes are interpreted as correspon...

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Detalles Bibliográficos
Autores principales:	Giordano, Gastón Luciano, Grandi, Nicolás Esteban, Lugo, Adrián René
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2021
Materias:	Física AdS-CFT Correspondence Holography and condensed matter physics (AdS/CMT)
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/130020
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-130020
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Física AdS-CFT Correspondence Holography and condensed matter physics (AdS/CMT)
spellingShingle	Física AdS-CFT Correspondence Holography and condensed matter physics (AdS/CMT) Giordano, Gastón Luciano Grandi, Nicolás Esteban Lugo, Adrián René Pomeranchuk instabilities in holographic metals
topic_facet	Física AdS-CFT Correspondence Holography and condensed matter physics (AdS/CMT)
description	We develop a method to detect instabilities leading to nematic phases in strongly coupled metallic systems. We do so by adapting the well-known Pomeranchuk technique to a weakly coupled system of fermions in a curved asymptotically AdS bulk. The resulting unstable modes are interpreted as corresponding to instabilities on the dual strongly coupled holographic metal. We apply our technique to a relativistic 3 + 1- dimensional bulk with generic quartic fermionic couplings, and explore the phase diagram at zero temperature for finite values of the fermion mass and chemical potential, varying the couplings. We find a wide region of parameters where the system is stable, which is simply connected and localized around the origin of coupling space.
format	Articulo Articulo
author	Giordano, Gastón Luciano Grandi, Nicolás Esteban Lugo, Adrián René
author_facet	Giordano, Gastón Luciano Grandi, Nicolás Esteban Lugo, Adrián René
author_sort	Giordano, Gastón Luciano
title	Pomeranchuk instabilities in holographic metals
title_short	Pomeranchuk instabilities in holographic metals
title_full	Pomeranchuk instabilities in holographic metals
title_fullStr	Pomeranchuk instabilities in holographic metals
title_full_unstemmed	Pomeranchuk instabilities in holographic metals
title_sort	pomeranchuk instabilities in holographic metals
publishDate	2021
url	http://sedici.unlp.edu.ar/handle/10915/130020
work_keys_str_mv	AT giordanogastonluciano pomeranchukinstabilitiesinholographicmetals AT grandinicolasesteban pomeranchukinstabilitiesinholographicmetals AT lugoadrianrene pomeranchukinstabilitiesinholographicmetals
bdutipo_str	Repositorios
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Pomeranchuk instabilities in holographic metals

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