Enhanced dimer relaxation in an atomic and molecular Bose-Einstein condensate

被引：57

作者：

Braaten, E

Hammer, HW

机构：

[1] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[2] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, Abt Theorie, D-53115 Bonn, Germany

来源：

PHYSICAL REVIEW A | 2004年 / 70卷 / 04期

关键词：

D O I：

10.1103/PhysRevA.70.042706

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We derive a universal formula for the rate constant beta for relaxation of a shallow dimer into deeply-bound diatomic molecules in the case of atoms with a large scattering length a. We show that beta is determined by a and by 2 three-body parameters that also determine the binding energies and widths of Efimov states. The rate constant beta scales like (h) over bara/m near the resonance, but the coefficient is a periodic function of ln(a) that may have resonant enhancement at values of a that differ by multiples of 22.7.

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页码：042706 / 1

页数：5

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