Solitons, Bose-Einstein condensation, and superfluidity in helium II
✍ Scribed by J. Chela-Flores; H. B. Ghassib
- Publisher
- Springer
- Year
- 1987
- Tongue
- English
- Weight
- 492 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0020-7748
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## Abstract The characteristic time of exciton relaxation due to phonons is estimated, and as it turns to be smaller than the exciton lifetime, it is concluded that Bose‐Einstein condensation is possible in the system of Frenkel excitons. It is further shown that kinematical interaction obtained in
We use the time-dependent mean-field Gross-Pitaevskii equation to study the formation of a dynamically-stabilized dissipation-managed bright soliton in a quasi-one-dimensional Bose-Einstein condensate (BEC). Because of three-body recombination of bosonic atoms to molecules, atoms are lost (dissipate