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arXiv 1111.6961cond-mat.quant-gasnucl-th
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p波相互作用中Efimov效应的不可能性

Impossibility of the Efimov effect for p-wave interactions

Yusuke Nishida

摘要:

原则上,对于p波或更高的分波相互作用,叶菲莫夫效应是否可能是一个基本问题。最近,有一种说法认为,三个非相对论粒子与共振p波相互作用表现出埃菲莫夫效应。我们指出,假设的p波散射振幅不可避免地会导致负概率。这表明在那里发现的Efimov状态在物理情况下无法实现。我们还重申了我们以前的论点,Efimov效应,定义为一个无限的塔的普遍束缚状态的特点是离散尺度不变性,是不可能的p波或更高的分波相互作用。

英文摘要:

Whether the Efimov effect is possible, in principle, for p-wave or higher partial-wave interactions is a fundamental question. Recently, there has been a claim that three nonrelativistic particles with resonant p-wave interactions exhibit the Efimov effect. We point out that the assumed p-wave scattering amplitude inevitably causes a negative probability. This indicates that the Efimov states found there cannot be realized in physical situations. We also restate our previous argument that the Efimov effect, defined as an infinite tower of universal bound states characterized by discrete scale invariance, is impossible for p-wave or higher partial-wave interactions.

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