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Three-body recombination in Bose gases with large scattering length | | P.F. Bedaque
; E. Braaten
; H.-W. Hammer
; | | Date: |
24 Feb 2000 | | Journal: | Phys.Rev.Lett. 85 (2000) 908-911 | | Subject: | Condensed Matter; Atomic Physics | cond-mat hep-ph nucl-th physics.atom-ph | | Affiliation: | INT), E. Braaten (Ohio State. U.), and H.-W. Hammer (Ohio State U. | | Abstract: | An effective field theory for the three-body system with large scattering length is applied to three-body recombination to a weakly-bound s-wave state in a Bose gas. Our model independent analysis demonstrates that the three-body recombination constant alpha is not universal, but can take any value between zero and 67.9 hbar a^4/m, where a is the scattering length. Other low-energy three-body observables can be predicted in terms of a and alpha. Near a Feshbach resonance, alpha should oscillate between those limits as the magnetic field B approaches the point where a -> infinity. In any interval of B over which a increases by a factor of 22.7, alpha should have a zero. | | Source: | arXiv, cond-mat/0002365 | | Services: | Forum | Review | PDF | Favorites | |
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