Quantitative test of thermal field theory for Bose-Einstein condensates
| Autor: | S. A. Morgan, M. Rusch, D. A. W. Hutchinson, K. Burnett |
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| Rok vydání: | 2003 |
| Předmět: |
Physics
Coupling Condensed Matter::Quantum Gases Thermal quantum field theory Condensed Matter::Other media_common.quotation_subject Condensed Matter (cond-mat) General Physics and Astronomy FOS: Physical sciences Context (language use) Condensed Matter Asymmetry law.invention Dipole law Quantum mechanics Quantum electrodynamics Atom Quasiparticle Bose–Einstein condensate media_common |
| DOI: | 10.48550/arxiv.cond-mat/0305535 |
| Popis: | We present numerical results from a full second order quantum field theory of Bose-Einstein condensates applied to the 1997 JILA experiment [D. S. Jin et al., Phys. Rev. Lett. Vol. 78, 764 (1997)]. Good agreement is found for the energies and decay rates for both the lowest-energy m = 2 and m = 0 modes. The anomalous behaviour of the m = 0 mode is due to experimental perturbation of the non-condensate. The theory includes the coupled dynamics of the condensate and thermal cloud, the anomalous pair average and all relevant finite size effects. Comment: 4 pages, 3 figures. Uses revtex4, amsmath, amssymb and psfrag |
| Databáze: | OpenAIRE |
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