We study the Mott transition in the two dimensional Hubbard model by using the variational cluster approximation. The transition potential obtained is roughly Uc ≈ 2 and 6 for square and triangular lattices, respectively. A comparison between results of this approximation and other quantum cluster methods is presented. Our zero-temperature calculation at strong coupling show that the transition on the triangular and square lattices occur at lower values of compared with other numerical techniques such as DMFT, CDMFT, and DCA. We also study the thermodynamic limit by an extrapolation to infinite size.
Peyman Sahebsara, (2019). The Mott metal-insulator transition in half-filled two-dimensional Hubbard models. Iranian Journal of Physics Research, 8(2), 118-118.
MLA
Peyman Sahebsara, . "The Mott metal-insulator transition in half-filled two-dimensional Hubbard models", Iranian Journal of Physics Research, 8, 2, 2019, 118-118.
HARVARD
Peyman Sahebsara (2019). 'The Mott metal-insulator transition in half-filled two-dimensional Hubbard models', Iranian Journal of Physics Research, 8(2), pp. 118-118.
CHICAGO
Peyman Sahebsara, "The Mott metal-insulator transition in half-filled two-dimensional Hubbard models," Iranian Journal of Physics Research, 8 2 (2019): 118-118,
VANCOUVER
Peyman Sahebsara The Mott metal-insulator transition in half-filled two-dimensional Hubbard models. Dear user; Recently we have changed our software to Sinaweb. If you had already registered with the old site, you may use the same USERNAME but you need to change your password. To do so at the first use, please choose, 2019; 8(2): 118-118.
