Quantum phase transitions and spontaneous symmetry-breaking in Dicke model

Journal Article · Mon Jun 10 00:00:00 EDT 2013 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4810842· OSTI ID:22118600

Puebla, R.; Retamosa, J. ^[1]; Relano, A. ^[2]

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1. Grupo de Fisica Nuclear, Departamento de Fisica Atomica, Molecular y Nuclear, Universidad Complutense de Madrid, Av. Complutense s/n, 28040 Madrid (Spain)
2. Departamento de Fisica Aplicada I and GISC, Universidad Complutense de Madrid, Av, Complutense s/n, 28040 Madrid (Spain)

A method to find the Excited-States Quantum Phase Transitions (ESQPT's) from paritysymmetry 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.

• OSTI ID: 22118600
• Journal Information: AIP Conference Proceedings, Vol. 1541, Issue 1; Conference: La Rabida 2012 international scientific meeting on nuclear physics: Basic concepts in nuclear physics: Theory, experiments, and applications, La Rabida (Spain), 9-13 Sep 2013; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ENERGY SPECTRA
EXCITED STATES
PARITY
PARTICLE MODELS
PHASE TRANSFORMATIONS
QUANTUM FIELD THEORY
SYMMETRY BREAKING