A study for the energy structure of the Mott system with a low-energy excitation, in terms of the pseudo-gap in HTSC

Abstract

The Mott system with a low-energy excitation may well constitute the underlying system for high temperature superconductivity (HTSC) of under-doped cuprates. This manuscript explores the above through the Hubbard-1 approximation (the Green function method), especially in terms of its self-energy while evaluating the calculation of self-energy using effective mass ratio. Results show it appears the pseudo-gap of HTSC is due to the self-energy effect on the quasi-particle excitation of the Mott's J.