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arXiv physics/0703168physics.atom-ph
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不可积性对原子波导中Feshbach分子稳定性的影响

Effects of nonintegrability on stabilization of Feshbach molecules in atom waveguides

V. A. Yurovsky

摘要:

分析了宽准一维双玻色子分子的失活。在可积的Lieb-Liniger-McGuire(LLMG)模型中,精确的表达式并不能证明在低碰撞能量下的失活抑制。Faddeev方程的解表明,当费什巴赫共振提升LLMG模型的对称性时,失活被抑制。这种效应显示了一种形成稳定的二玻色子Feshbach分子气体的方法。

英文摘要:

Deactivation of broad quasi-one-dimensional dibosonic molecules is analyzed. Within integrable Lieb-Liniger-McGuire (LLMG) model an exact expression does not demonstrate suppression of the deactivation at low collision energies. Solution of Faddeev equations demonstrates that when a Feshbach resonance lifts the symmetry of the LLMG model the deactivation becomes suppressed. This effect shows a way for formation of a stable gas of dibosonic Feshbach molecules.

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