Volume 54, Number 1, April 2001
|Page(s)||14 - 20|
|Published online||01 December 2003|
Non-Markovian spectral broadening in interacting continuous-wave atom lasers
Albert-Ludwigs-Universität, Fakultät für Physik
Hermann-Herder Straße 3, Freiburg im Breisgau, D-79104
2 Istituto Italiano per gli Studi Filosofici, Palazzo Serra di Cassano Via Monte di Dio 14, 80132 Napoli, Italy
Accepted: 26 January 2001
The non-Markovian dynamics of a continuous-wave atom laser model is studied which includes gravitational effects and interactions inside the Bose-Einstein condensate. With the help of the time-convolutionless projection operator technique both the occupation number of the condensate and the spectrum of the atoms coupled out of the condensate are determined. A correct modeling of memory effects in the atom laser requires a generalization of the projection operator technique which takes into account correlations in the initial state of the combined atom-reservoir system. The non-Markovian evolution is shown to yield substantial deviations from results obtained in the Born-Markov approximation.
PACS: 03.75.Fi – Phase coherent atomic ensembles; quantum condensation phenomena / 42.50.Lc – Quantum fluctuations, quantum noise, and quantum jumps / 02.70.Rr – General statistical methods
© EDP Sciences, 2001
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.