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arXiv math-ph/9908008math-phmath.MP
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点相互作用哈密顿量的过面通量定理

The Flux-Across-Surfaces Theorem for a Point Interaction Hamiltonian

G. Panati, A. Teta

摘要:

在量子散射理论中,跨面通量定理建立了渐近出射态与实验中直接测量的量之间的基本关系。我们证明了它的一个点相互作用的哈密顿量,使用的传播子的显式表达式。证明只需要初始状态的假设,它也涵盖了零能量共振的情况。我们还概述了一种不同的方法的基础上广义本征函数,鉴于可能的扩展的结果。

英文摘要:

The flux-across-surfaces theorem establishes a fundamental relation in quantum scattering theory between the asymptotic outgoing state and a quantity which is directly measured in experiments. We prove it for a hamiltonian with a point interaction, using the explicit expression for the propagator. The proof requires only assuptions on the initial state and it covers also the case of zero-energy resonance. We also outline a different approach based on generalized eigenfunctions, in view of a possible extension of the result.

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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