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arXiv 1101.0696cond-mat.quant-gas
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调和势中的Efimov三分子

Efimov Trimers in a Harmonic Potential

Jacobus Portegies, Servaas Kokkelmans

摘要:

我们研究的Efimov效应的谐振子在超球的制定,并显示如何减少模型允许的描述是一个概括的Efimov效应在自由空间,并导致结果,很容易解释。Efimov物理学可以通过改变散射长度的值来观察,因为在三聚体具有混合谐振子和Efimov特征的情况下,这些状态的非弹性性质仍然是可管理的。该模型还允许通过包括有效范围散射参数的非通用Efimov三聚体的研究。虽然我们发现,在一定的制度的有效范围参数可以接管的三体参数的作用,有趣的是,我们得到了这两个参数之间的数值关系不同于在其他模型中发现的。

英文摘要:

We study the Efimov effect in a harmonic oscillator in the hyperspherical formulation, and show how a reduced model allows for a description that is a generalization of the Efimov effect in free space and leads to results that are easily interpreted. Efimov physics may be observed by varying the value of the scattering length, since in the regime where the trimers have a mixed harmonic oscillator and Efimov character, the inelastic properties of these states are still manageable. The model also allows for the study of non-universal Efimov trimers by including the effective range scattering parameter. While we find that in a certain regime the effective range parameter can take over the role of the three-body parameter, interestingly, we obtain a numerical relationship between these two parameters different from what was found in other models.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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