On Point-Like Interaction between n Fermions and Another Particle

On Point-Like Interaction between n Fermions and Another Particle
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n 个费米子与另一个粒子之间的点状相互作用

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发表时间:
2011
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通讯作者:
R. Minlos
R. Minlos
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文献类型:
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作者:
R. Minlos

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在这篇文章中,n 个费米子与不同性质的粒子的点状相互作用被考虑在对称算子自伴扩张理论的框架中。它引入了原始对称算子的扩展族,从物理角度来看是最自然的(所谓的 Ter-Martirosian-Skornyakov 扩展)。在这里,我们证明,对于 n 6 4 和足够大的单独粒子的质量值,这些扩展是自伴的并且从下面有界。 2000 数学。主题。班级。 81Q10、47S30。
In this note the point-like interaction of n fermions with a particle of a different nature is considered in a framework of the theory of self-adjoint extensions of symmetric operators. It introduces the family of extensions of the original symmetric operator, most natural from the physical point of view (the so-called Ter-Martirosian–Skornyakov’ extensions). Here we prove that for n 6 4 and large enough values of the mass of the separate particle these extensions are self-adjoint and bounded from below. 2000 Math. Subj. Class. 81Q10, 47S30.