Identifying the order of a quantum phase transition by means of Wehrl entropy in phase space

Castaños, Octavio; Calixto, M.; Pérez Bernal, Francisco; Romera, Elvira

doi:10.1103/PhysRevE.92.052106

Author

Castaños, Octavio; Calixto, M.; Pérez Bernal, Francisco ; Romera, Elvira
Publication Date

2015
Publisher

American Physical Society
Citation

Castaño, O., Calixto, M., Pérez Bernal, F., Romera, E.: "Identifying the order of a quantum phase transition by means of Wehrl entropy in phase space". Physical Review E. Vol. 92, 052106, (2015). DOI: 10.1103/PhysRevE.92.052106
Abstract

We propose a method to identify the order of a quantum phase transition by using area measures of the ground state in phase space. We illustrate our proposal by analyzing the well known example of the quantum cusp and four different paradigmatic boson models: Dicke, Lipkin-Meshkov-Glick, interacting boson model, and vibron model.
URI

http://hdl.handle.net/10272/11484
Project

info:eu-repo/grantAgreement/MINECO [FIS2011-28738-C02-02, FIS2014-53448-C2-2-P]
info:eu-repo/grantAgreement/Spanish Project: MINECO [FIS2014-59386-P]
info:eu-repo/grantAgreement/Spanish Project: Junta de Andalucia [P12.FQM.1861,FQM-381]

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Identifying the order of a quantum phase transition by means of Wehrl entropy in phase space

Author

Castaños, Octavio; Calixto, M.; Pérez Bernal, Francisco UHU Authority

; Romera, Elvira

Publication Date

2015

Publisher

American Physical Society

Citation

Castaño, O., Calixto, M., Pérez Bernal, F., Romera, E.: "Identifying the order of a quantum phase transition by means of Wehrl entropy in phase space". Physical Review E. Vol. 92, 052106, (2015). DOI: 10.1103/PhysRevE.92.052106

Abstract

We propose a method to identify the order of a quantum phase transition by using area measures of the ground state in phase space. We illustrate our proposal by analyzing the well known example of the quantum cusp and four different paradigmatic boson models: Dicke, Lipkin-Meshkov-Glick, interacting boson model, and vibron model.

URI

http://hdl.handle.net/10272/11484

Project

info:eu-repo/grantAgreement/MINECO [FIS2011-28738-C02-02, FIS2014-53448-C2-2-P]
info:eu-repo/grantAgreement/Spanish Project: MINECO [FIS2014-59386-P]
info:eu-repo/grantAgreement/Spanish Project: Junta de Andalucia [P12.FQM.1861,FQM-381]

Fichero	Tamaño	Formato	Ver	Description
Identifying_the_order.pdf	351.8Kb	PDF	View/Open	versión editor

Fichero	Tamaño	Formato	Ver	Description
Identifying_the_order.pdf	351.8Kb	PDF	View/Open	versión editor

This item appears in the following Collection(s)

DFA - Artículos