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arXiv 1006.2646cond-mat.quant-gasquant-ph
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Efimov谱中的交叉

Crossover in the Efimov spectrum

Ludovic Pricoupenko

摘要:

本文介绍了一种滤波方法来解决零程三玻色子问题。该方案允许解决原来的Skorniakov Ter-Martirosian积分方程的任意大的紫外截止,以避免托马斯崩溃的三个粒子。该方法适用于一个更一般的零距离模型,包括一个有限的背景两体散射长度和有效范围。在Efimov谱的交叉被发现在这样的系统和一个特定的制度出现在Efimov状态是长期存在的。

英文摘要:

A filtering method is introduced for solving the zero-range three-boson problem. This scheme permits to solve the original Skorniakov Ter-Martirosian integral equation for an arbitrary large Ultra-Violet cut-off and to avoid the Thomas collapse of the three particles. The method is applied to a more general zero-range model including a finite background two-body scattering length and the effective range. A cross-over in the Efimov spectrum is found in such systems and a specific regime emerges where Efimov states are long-lived.

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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