Phase diagram of the half-filled Anderson-Hubbard model at finite temperature
Nguyen Thi Hai Yen, Hoàng Anh Tuấn
Abstract We study metal-insulator phase diagram in the half-filled disordered Hubbard model at finite temperature. We calculate the averaged local density of states at the Fermi level and the site occupation as a function of the on-site energy at finite temperature by using typical medium theory with an impurity solver of equation of motion method. Although the metallicity in the correlated metallic region changes with temperature change, the phase diagram is almost temperature independent. We find fairly good agreement between our site occupation and those obtained by the typical medium method with other impurity solver.
Journal of Physics Conference Series•Apr 1, 2023•0 citations