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arXiv 0811.0159nucl-thhep-lat
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有限体积叶菲莫夫物理学

Efimov physics in a finite volume

Simon Kreuzer, H. -W. Hammer

摘要:

具有大散射长度的三玻色子显示出不依赖于短距离相互作用细节的普适性质。在三玻色子系统中,这些性质包括称为“Efimov态”的浅三体态的几何谱和散射观测值对散射长度的对数周期依赖性。我们研究了有限立方盒子中Efimov态的变形,并利用有效场论计算了它们的能量与盒子尺寸的关系。我们明确地验证了有限体积中的有效场论的重整化。

英文摘要:

Three bosons with large scattering length show universal properties that do not depend on the details of the interaction at short distances. In the three-boson system, these properties include a geometric spectrum of shallow three-body states called "Efimov states" and log-periodic dependence of scattering observables on the scattering length. We investigate the modification of the Efimov states in a finite cubic box and calculate the dependence of their energies on the box size using effective field theory. We explicitly verify the renormalization of the effective field theory in the finite volume.

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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