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http://hdl.handle.net/2445/9580| Title: | Temperature-induced resonances and Landau damping of collective modes in Bose-Einstein condensed gases in spherical traps |
| Author: | Guilleumas, Montserrat Pitaevskii, L. P. (Lev Petrovich) |
| Keywords: | Matèria condensada Condensació de Bose-Einstein Pertorbació (Dinàmica quàntica) Excitació nuclear Equacions d'ones Condensed matter Bose-Einstein condensation Perturbation (Quantum dynamics) Nuclear excitation |
| Issue Date: | 1999 |
| Publisher: | The American Physical Society |
| Abstract: | Interaction between collective monopole oscillations of a trapped Bose-Einstein condensate and thermal excitations is investigated by means of perturbation theory. We assume spherical symmetry to calculate the matrix elements by solving the linearized Gross-Pitaevskii equations. We use them to study the resonances of the condensate induced by temperature when an external perturbation of the trapping frequency is applied and to calculate the Landau damping of the oscillations. |
| Note: | Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevA.61.013602 |
| It is part of: | Physical Review A, 1999, vol. 61, núm. 1, p. 013602. |
| URI: | http://hdl.handle.net/2445/9580 |
| Related resource: | http://dx.doi.org/10.1103/PhysRevA.61.013602 |
| ISSN: | 1050-2947 |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| 522509.pdf | 123.66 kB | Adobe PDF | View/Open |
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