Impurity-driven metal-insulator transitions in holography

A bstract In this work, we study Metal-Insulator transition in a holographic model containing an interaction between the order parameter and charge-carrier density. It turns out that the impurity density of this model can drive the phase transition whose ordered phase corresponds to the insulating p...

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Bibliographic Details
Published in:The journal of high energy physics 2023-06, Vol.2023 (6), p.112-23, Article 112
Main Authors: Seo, Yunseok, Ahn, Young jun, Kim, Keun-Young, Sin, Sang-Jin, Kim, Kyung Kiu
Format: Article
Language:English
Subjects:
Carrier density
Classical and Quantum Gravitation
Condensed matter physics
Current carriers
Electric currents
Elementary Particles
Gauge-Gravity Correspondence
Geometry
High energy physics
Holography
Holography and Condensed Matter Physics (AdS/CMT)
Impurities
Insulation
Insulators
Metal-insulator transition
Numerical methods
Order parameters
Phase transitions
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
String Theory
Temperature
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Summary:A bstract In this work, we study Metal-Insulator transition in a holographic model containing an interaction between the order parameter and charge-carrier density. It turns out that the impurity density of this model can drive the phase transition whose ordered phase corresponds to the insulating phase. The temperature behavior of DC conductivity distinguishes the insulating phase from the metal phase. We confirm this behavior by a numerical method and an analytic calculation. As a byproduct, we show the existence of a ‘quantum phase transition’ supported by the Breitenlohner-Freedman bound argument.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP06(2023)112