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cond-mat.str-el2023
Effect of next-nearest neighbor hopping on the single-particle excitations
Harun Al Rashid, Dheeraj Kumar Singh
In the half-filled one-orbital Hubbard model on a square lattice, we study the effect of next-nearest neighbor hopping on the single-particle spectral function at finite temperatur…
cond-mat.str-el2022
Thermal evolution of single-particle spectral function in the half-filled Hubbard model and pseudogap
Harun Al Rashid, Dheeraj Kumar Singh
In the half-filled one-orbital Hubbard model on a square lattice, we find pseduogap features in the form of two-peak structures associated with the momentum-resolved spectral funct…