The condensate equation for some Bose systems
| Autor: | E Buffet, Ph. De Smedt, J. V. Pulé |
|---|---|
| Rok vydání: | 1983 |
| Předmět: |
Condensed Matter::Quantum Gases
Physics Bose gas Condensed Matter::Other Infinite volume Condensation Isotropy General Physics and Astronomy Statistical and Nonlinear Physics Dilation (operator theory) symbols.namesake Bose–Einstein statistics Quantum mechanics Thermodynamic limit symbols Limit (mathematics) Mathematical Physics |
| Zdroj: | Journal of Physics A: Mathematical and General. 16:4307-4324 |
| ISSN: | 1361-6447 0305-4470 |
| DOI: | 10.1088/0305-4470/16/18/031 |
| Popis: | The exactness of the Bogoliubov approximation is discussed from the point of view of the condensation properties of the Bose gas. For the imperfect Bose gas, the authors find that the approximation yields the correct condensate density when the thermodynamic limit is taken by isotropic dilation; this is not the case in general for other ways of going to the infinite volume limit. They also prove the existence of Bose-Einstein condensation for a class of Bose gases with weak interactions and an energy gap. |
| Databáze: | OpenAIRE |
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