Classical-field method for time dependent Bose-Einstein condensed gases
Sinatra, Alice, Lobo, Carlos and Castin, Yvan (2001) Classical-field method for time dependent Bose-Einstein condensed gases. Physical Review Letters, 87, (21), 210404-[4pp]. (doi:10.1103/PhysRevLett.87.210404).
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Description/Abstract
We propose a method to study the time evolution of Bose-Einstein condensed gases perturbed from an initial thermal equilibrium, based on the Wigner representation of the N-body density operator. We show how to generate a collection of random classical fields sampling the initial Wigner distribution in the number conserving Bogoliubov approximation. The fields are then evolved with the time dependent Gross-Pitaevskii equation. We illustrate the method with the damping of a collective excitation of a one-dimensional Bose gas
| Item Type: | Article |
|---|---|
| ISSNs: | 0031-9007 (print) 1079-7114 (electronic) |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Social and Human Sciences > Mathematical Sciences > Applied Mathematics |
| Item ID: | 205913 |
| Date Deposited: | 15 Dec 2011 09:50 |
| Last Modified: | 15 Aug 2012 02:54 |
| Contributors: | Sinatra, Alice (Author) Lobo, Carlos (Author) Castin, Yvan (Author) |
| Date: | 2001 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/205913 |
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