| Issue |
J. Phys. Colloques
Volume 39, Number C6, Août 1978
The XVth International Conference on low temperature physicsQuantum Fluids and Solids Superconductivity |
|
|---|---|---|
| Page(s) | C6-215 - C6-216 | |
| DOI | https://doi.org/10.1051/jphyscol:1978695 | |
The XVth International Conference on low temperature physics
Quantum Fluids and Solids
Superconductivity
J. Phys. Colloques 39 (1978) C6-215-C6-216
DOI: 10.1051/jphyscol:1978695
The Physics Laboratories, University of Kent at Canterbury, Canterbury, Kent, U.K.
Quantum Fluids and Solids
Superconductivity
J. Phys. Colloques 39 (1978) C6-215-C6-216
DOI: 10.1051/jphyscol:1978695
STATIC AND DYNAMIC STRUCTURE FACTORS FOR MODELLED NORMAL 4HELIUM
C.G. Harris and W.A.B.EvansThe Physics Laboratories, University of Kent at Canterbury, Canterbury, Kent, U.K.
Résumé
Nous présentons une évaluation quantique conservative du facteur de structure dynamique de Van Hove pour les liquides, dans le cas des fluides normaux de bosons. Des calculs numériques détaillés pour l'Helium-4 montrent les bandes de Brillouin aux faibles q et l'"impulse approximation" aux grands q.
Abstract
We present a quantum, conserving approximation evaluation of the Van Hove dynamic liquid structure factor in a normal Bose fluid. A detailed numerical evaluation for normal liquid 4Helium shows Brillouin peaks at low q, and at high q the impulse approximation results.