| Numéro |
J. Phys. Colloques
Volume 39, Numéro C6, Août 1978
The XVth International Conference on low temperature physicsQuantum Fluids and Solids Superconductivity |
|
|---|---|---|
| Page(s) | C6-144 - C6-145 | |
| DOI | https://doi.org/10.1051/jphyscol:1978664 | |
The XVth International Conference on low temperature physics
Quantum Fluids and Solids
Superconductivity
J. Phys. Colloques 39 (1978) C6-144-C6-145
DOI: 10.1051/jphyscol:1978664
1 Departmento de Física, Fontifícia Universidade Católica Cx. P. 38071, Rio de Janeiro, RJ, Brasil
2 Work supported in part by the Brazilian National Council for Research and Technological Development . (CNPq).
Quantum Fluids and Solids
Superconductivity
J. Phys. Colloques 39 (1978) C6-144-C6-145
DOI: 10.1051/jphyscol:1978664
ROTON LIFETIME EFFECTS ON THE THERMODYNAMIC PROPERTIES OF He II
G.M. Carneiro1, 21 Departmento de Física, Fontifícia Universidade Católica Cx. P. 38071, Rio de Janeiro, RJ, Brasil
2 Work supported in part by the Brazilian National Council for Research and Technological Development . (CNPq).
Résumé
Ce travail traite d'effets introduits par le temps de vie fini des rotons sur les propriété- thermodynamiques de l'hélium II. On utilise une approximation conservative et self-consistante pour l'entropie, laquelle tient compte de la diffusion multiple entre les rotons d'une paire.
Abstract
This paper investigates the effects of finite roton lifetime on the thermodynamic properties of the He II using a self-consistent and conserving approximation for the entropy that takes into account repeated roton-roton scattering.