Finite temperature aspect ratio in ultra-cold Bose gas for large N
| Autor: | S. Kouidri |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Condensed Matter::Quantum Gases
Physics Bose gas Aspect ratio Condensed Matter::Other General Physics and Astronomy Fraction (chemistry) 01 natural sciences 010305 fluids & plasmas law.invention Gas in a harmonic trap law 0103 physical sciences Atomic physics 010306 general physics Excitation Bose–Einstein condensate |
| Zdroj: | Physics Letters A. 383:1283-1287 |
| ISSN: | 0375-9601 |
| Popis: | We present a detailed study of the temperature dependence of the condensate fraction, collective excitation and aspect ratio profiles of a Bose-condensed gas in a harmonic trap for large numbers of condensate atoms up to 85000. These quantities are calculated self-consistently using the generalized Hartree–Fock–Bogoliubov (GHFB) equations. We determine the evolution of the aspect ratio at zero and finite temperature via the condensed fraction. We compare our results with experimental data and we find a good agreement. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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