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- W3201984746 abstract "We investigate the doping-driven metal-insulator transition of the (2+1)-dimensional Hubbard model in the path-integral formalism with the tensor renormalization group method. We calculate the electron density $langle nrangle$ as a function of the chemical potential $mu$ choosing three values of the Coulomb potential with $U=80$, 8, and 2 as representative cases of the strong, intermediate, and weak couplings. We have determined the critical chemical potential at each $U$, where the Hubbard model undergoes the metal-insulator transition from the half-filling plateau with $langle nrangle=1$ to the metallic state with $langle nrangle > 1$. Our results indicate that the model exhibits the metal-insulator transition over the vast region of the finite coupling $U$." @default.
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- W3201984746 date "2021-09-29" @default.
- W3201984746 modified "2023-09-27" @default.
- W3201984746 title "Metal-insulator transition in (2+1)-dimensional Hubbard model with tensor renormalization group" @default.
- W3201984746 hasPublicationYear "2021" @default.
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