Numéro |
J. Phys. Colloques
Volume 39, Numéro C6, Août 1978
The XVth International Conference on low temperature physicsQuantum Fluids and Solids Superconductivity |
|
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Page(s) | C6-235 - C6-236 | |
DOI | https://doi.org/10.1051/jphyscol:19786104 |
The XVth International Conference on low temperature physics
Quantum Fluids and Solids
Superconductivity
J. Phys. Colloques 39 (1978) C6-235-C6-236
DOI: 10.1051/jphyscol:19786104
Solid State Physics Division, Nuclear Research Center Atomic Energy Organization of Iran, Teheran, Iran
Quantum Fluids and Solids
Superconductivity
J. Phys. Colloques 39 (1978) C6-235-C6-236
DOI: 10.1051/jphyscol:19786104
MICROSCOPIC CALCULATION OF THE ANOMALOUS DISPERSION IN He II
Fereydoon FamilySolid State Physics Division, Nuclear Research Center Atomic Energy Organization of Iran, Teheran, Iran
Résumé
L'utilisation d'une théorie microscopique, basée sur les méthodes de la théorie des champs, nous a permis de déterminer que le spectre élémentaire d'excitation de l'hélium II à zéro degré a une dispersion anormale qui peut être décrite par la relation E(k) = [MATH]ck[l + 0.11 k2 + ...].
Abstract
By using a microscopic theory based on field theoretic methods we have determined that the zero temperature elementary excitation spectrum of He II has an anomalous dispersion and can be described by the expression E(k) = [MATH]ck[1 + 0.11 k2 + ...].