Some applications of strong coupling theory to non-BCS superconductors

Abstract

Some applications of the strong coupling theory are presented in this paper, including the attenuation of acoustic waves, damping of radiation, and lifetime broadening in graphene superconductors. Among others, it provides an overview of analytical techniques used to calculate the infrared absorption rate, acoustic attenuation rate, and lifetime broadening in graphene within the framework of Eliashberg strong-coupling theory. Significant focus is given to the discussion of lifetime broadening in graphene.