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arXiv 1902.08799math-phhep-thmath.MP
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无质量Nelson模型IV中的库仑散射。原子-电子散射

Coulomb scattering in the massless Nelson model IV. Atom-electron scattering

Wojciech Dybalski, Alessandro Pizzo

摘要:

我们考虑无质量的纳尔逊模型,有两种类型的大质量粒子,我们称之为原子和电子。原子通过红外正则形状因子与光子相互作用,因此它们是具有尖锐质量壳层的维格纳型粒子。电子具有红外奇异形状因子,因此它们是伴随着与它们的速度相关的软光子云的亚粒子。在弱耦合区,我们构造了一个原子和一个电子的散射态,并证明了它们的渐近聚集成单个粒子。证明依赖于库克的论点,聚类估计,和非平稳相方法。后一种方法需要对模型的纤维哈密顿量的基态波函数的导数进行精确的估计,这在本系列的早期论文中已经得到了证明。虽然我们依赖于早期的研究,在纳尔逊模型中的原子-原子和电子-光子散射,本文是写在一个独立的方式。对该模型中的电子-电子散射问题进行了展望。

英文摘要:

We consider the massless Nelson model with two types of massive particles which we call atoms and electrons. The atoms interact with photons via an infrared regular form-factor and thus they are Wigner-type particles with sharp mass-shells. The electrons have an infrared singular form-factor and thus they are infraparticles accompanied by soft-photon clouds correlated with their velocities. In the weak coupling regime we construct scattering states of one atom and one electron, and demonstrate their asymptotic clustering into individual particles. The proof relies on the Cook's argument, clustering estimates, and the non-stationary phase method. The latter technique requires sharp estimates on derivatives of the ground state wave functions of the fiber Hamiltonians of the model, which were proven in the earlier papers of this series. Although we rely on earlier studies of the atom-atom and electron-photon scattering in the Nelson model, the paper is written in a self-contained manner. A perspective on the open problem of the electron-electron scattering in this model is also given.

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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