Quantum phase transitions and spontaneous symmetry-breaking in Dicke Model

A method to find the Excited-States Quantum Phase Transitions (ESQPT's) from parity-symmetry in the Dicke model is studied and presented. This method allows us to stablish a critical energy where ESQPT's take places, and divides the whole energy spectrum in two regions with different prope...

ver descrição completa

Detalhes bibliográficos
Autores: Puebla, Ricardo, Relaño Pérez, Armando, Retamosa Granado, Joaquín
Formato: capítulo de livro
Fecha de publicación:2013
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/45632
Acesso em linha:https://hdl.handle.net/20.500.14352/45632
Access Level:acceso abierto
Palavra-chave:536
Quantum phase transition
Spontaneous symmetry-breaking
Física (Física)
22 Física
Descrição
Resumo:A method to find the Excited-States Quantum Phase Transitions (ESQPT's) from parity-symmetry in the Dicke model is studied and presented. This method allows us to stablish a critical energy where ESQPT's take places, and divides the whole energy spectrum in two regions with different properties.