EnglishQuantal kinetic equations for particle and current densities of condensate and non-condensate in a confined Bose-condensed fluid are set up by expansion of the one-body density matrix about its diagonal. A microscopic Landau equation for superfluid flow in the inhomogeneous system is derived. Current-density functional theory in the local (long-wavelength) approximation is then used to propose a unified treatment of various damping mechanisms. (C) 1997 Elsevier Science B.V.
| Autori: | |
| Autori: | Minguzzi, A; Chiofalo, MARIA LUISA; Tosi, Mp |
| Titolo: | Generalized quantum hydrodynamics of a trapped dilute Bose gas |
| Anno del prodotto: | 1997 |
| Digital Object Identifier (DOI): | 10.1016/S0375-9601(97)00775-5 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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