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arXiv 1609.08342math-phcond-mat.quant-gasmath.MP
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具有点相互作用的费米子$N+1$粒子系统的稳定性

Stability of a fermionic $N+1$ particle system with point interactions

Thomas Moser, Robert Seiringer

摘要:

我们证明了一个系统的$N$费米子与一个额外的粒子通过点相互作用是稳定的,如果额外的粒子的质量比的费米子之一是大于某个临界$m^*$。$m^*$的值与$N$无关,结果小于$1$。这一事实对幺正费米气体的稳定性具有重要的意义。我们还刻画了该模型的哈密顿量的区域,并建立了该区域内所有波函数的Tan关系的有效性。

英文摘要:

We prove that a system of $N$ fermions interacting with an additional particle via point interactions is stable if the ratio of the mass of the additional particle to the one of the fermions is larger than some critical $m^*$. The value of $m^*$ is independent of $N$ and turns out to be less than $1$. This fact has important implications for the stability of the unitary Fermi gas. We also characterize the domain of the Hamiltonian of this model, and establish the validity of the Tan relations for all wave functions in the domain.

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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