INVESTIGADORES
CANOSA Norma Beatriz
artículos
Título:
The RPA correlations in the presence of thermal fluctuations
Autor/es:
R. ROSSIGNOLI; N. CANOSA
Revista:
PHYSICS LETTERS B
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 1997 vol. 394 p. 242 - 246
ISSN:
0370-2693
Resumen:
We investigate the RPA correlations at finite temperature in the presence of thermal fluctuations in the context of the microscopic static path approximation. The RPA correction to the partition function is evaluated exactly. Its effects for the case of discrete and continuous broken symmetries in the mean field are then examined in a solvable model. The Goldstone modes and the treatment of repulsive terms in the interaction are also discussed.
