MEAN-FIELD EXPANSION IN BOSE–EINSTEIN CONDENSATES WITH FINITE-RANGE INTERACTIONS
| Autor: | Ralf Schützhold, Uwe R. Fischer, Yan Xu, Michael Uhlmann |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Condensed Matter::Quantum Gases
Physics Scattering FOS: Physical sciences Statistical and Nonlinear Physics Condensed Matter Physics Finite range law.invention Condensed Matter - Other Condensed Matter Mean field theory law Quantum electrodynamics Scaling Bose–Einstein condensate Other Condensed Matter (cond-mat.other) |
| Zdroj: | International Journal of Modern Physics B. 20:3555-3565 |
| ISSN: | 1793-6578 0217-9792 |
| DOI: | 10.1142/s0217979206035631 |
| Popis: | We present a formal derivation of the mean-field expansion for dilute Bose-Einstein condensates with two-particle interaction potentials which are weak and finite-range, but otherwise arbitrary. The expansion allows for a controlled investigation of the impact of microscopic interaction details (e.g., the scaling behavior) on the mean-field approach and the induced higher-order corrections beyond the s-wave scattering approximation. Comment: 6 pages of RevTex4; extended discussion, added references |
| Databáze: | OpenAIRE |
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