Finite temperature effects and phase transitions in the pairing force problem: Variational approach

Journal Article · Sat Nov 30 23:00:00 EST 1985 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.32.2111· OSTI ID:6385442

Bozzolo, G; Civitarese, O

Finite temperature effects in the pairing force problem are studied within the formalism of a variational approach. The formalism, which is free of the number fluctuations which are present in the standard Bardeen-Cooper-Schrieffer approach, allows for the description of thermally-induced phase transitions. An application of the method is discussed for the case of a two-level model.

• Research Organization: Physics Department, Iowa State University, Ames, Iowa 50011
• OSTI ID: 6385442
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 32:6; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653001* -- Nuclear Theory-- Nuclear Structure
Moments
Spin
& Models
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COUPLING CONSTANTS
EIGENVALUES
FERMIONS
HAMILTONIANS
INTERACTIONS
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MATRIX ELEMENTS
NUCLEAR MODELS
PAIRING INTERACTIONS
PARTICLE MODELS
PHASE TRANSFORMATIONS
QUANTUM OPERATORS
SHELL MODELS
SINGLE-PARTICLE MODEL
TEMPERATURE EFFECTS
VARIATIONAL METHODS