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- W1987700606 abstract "In this work we solve a general Hubbard Hamiltonian for two interacting particles in a periodic and nonperiodic infinite one-dimensional lattice, using a real-space mapping method, the renormalized perturbation expansion (RPE), and the Green-function technique. This Hamiltonian considers a general bond-charge interaction, the on-site interaction, and the general intersite interaction. The real-space method is based on mapping the correlated many-body problem onto an equivalent site- and bond-impurity tight-binding problem in a higher-dimensional space. Analyzing the periodic and the quasiperiodic lattices in this new space, we obtained the analytical solution for the binding condition at the ground state. Our general results for the periodic chain reproduce completely the limit cases of the numerical solution obtained previously and those obtained in reciprocal space" @default.
- W1987700606 created "2016-06-24" @default.
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- W1987700606 date "2003-05-28" @default.
- W1987700606 modified "2023-10-16" @default.
- W1987700606 title "Hubbard model in one dimension with a general bond-charge interaction: Analytical ground-state solution for the pairing of two particles" @default.
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- W1987700606 doi "https://doi.org/10.1103/physrevb.67.193105" @default.
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