arXiv:2202.12465·v1·cond-mat.other
Friedel formula and Krein's theorem in complex potential scattering theory
Peng Guo🇺🇸 · Vladimir Gasparian🇺🇸
Abstract
In this work, the generalization of Friedel formula and Krein's theorem in complex potential scattering theory is presented. The consequence of various symmetry constraints on dynamical system are discussed. In addition, Muskhelishvili-Omnès representation of Krein's theorem is also given and discussed.