Coherence properties of an atom laser
| Autor: | Marek Trippenbach, Y B Band, Mark Edwards, Marya Doery, P S Julienne, E W Hagley, L Deng, M Kozuma, K Helmerson, S L Rolston, W D Phillips |
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| Jazyk: | angličtina |
| Rok vydání: | 1999 |
| Předmět: |
Physics
Condensed Matter::Quantum Gases Condensed Matter::Other Condensed Matter (cond-mat) FOS: Physical sciences Trapping Condensed Matter Condensed Matter Physics Atomic and Molecular Physics and Optics Coherence length symbols.namesake Atom laser symbols Physics::Atomic Physics Atomic physics Raman spectroscopy Coherence (physics) |
| Popis: | We study the coherence properties of an atom laser, which operates by extracting atoms from a gaseous Bose-Einstein condensate via a two-photon Raman process, by analyzing a recent experiment. We obtain good agreement with the experimental data by solving the time-dependent Gross-Pitaevskii equation in three dimensions both numerically and with a Thomas-Fermi model. The coherence length is strongly affected by the space-dependent phase developed by the condensate when the trapping potential is turned off. 11 pages, 2 Postscript figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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