Critical metal-insulator transition and divergence in a two-particle irreducible vertex in disordered and interacting electron systems

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F14%3A00438839" target="_blank" >RIV/68378271:_____/14:00438839 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevB.90.045143" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.90.045143</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.90.045143" target="_blank" >10.1103/PhysRevB.90.045143</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Critical metal-insulator transition and divergence in a two-particle irreducible vertex in disordered and interacting electron systems

Popis výsledku v původním jazyce

We use the dynamical mean-field approximation to study singularities in the self-energy and a two-particle irreducible vertex induced by the metal-insulator transition of the disordered Falicov-Kimball model. We set general conditions for the existence of a critical metal-insulator transition caused by a divergence of the imaginary part of the self-energy. We calculate explicitly the critical behavior of the self-energy for the symmetric and asymmetric disorder distributions and demonstrate that the critical metal-insulator transition is preceded by a pole in a two-particle irreducible vertex. Unlike the singularity in the self-energy the divergence in the irreducible vertex does not lead to non-analyticities in measurable physical quantities.

Název v anglickém jazyce

Critical metal-insulator transition and divergence in a two-particle irreducible vertex in disordered and interacting electron systems

Popis výsledku anglicky

We use the dynamical mean-field approximation to study singularities in the self-energy and a two-particle irreducible vertex induced by the metal-insulator transition of the disordered Falicov-Kimball model. We set general conditions for the existence of a critical metal-insulator transition caused by a divergence of the imaginary part of the self-energy. We calculate explicitly the critical behavior of the self-energy for the symmetric and asymmetric disorder distributions and demonstrate that the critical metal-insulator transition is preceded by a pole in a two-particle irreducible vertex. Unlike the singularity in the self-energy the divergence in the irreducible vertex does not lead to non-analyticities in measurable physical quantities.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review. B

ISSN

1098-0121

e-ISSN

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Svazek periodika

90

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

"045143-1"-"045143-11"

Kód UT WoS článku

000339975400004

EID výsledku v databázi Scopus

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