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- W2051248636 abstract "We obtain exact ground states for the spinless Falicov-Kimball model with hybridization in one dimension $(d=1).$ Ground-state energies and their corresponding wave functions are given for a restricted region of the parameter space in the limit of strong interactions for the half-filling condition. We find that the ground states possess a diagonal long range order and constitute a condensation of excitons in a zero momentum state. On the other hand, the correlation function $A=〈{d}_{i}^{ifmmodedaggerelsetextdaggerfi{}}{f}_{i}〉$ is purely imaginary, indicating that the ground state does not exhibit spontaneous ferroelectricity." @default.
- W2051248636 created "2016-06-24" @default.
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- W2051248636 date "2004-02-20" @default.
- W2051248636 modified "2023-09-23" @default.
- W2051248636 title "Ground states of the Falicov-Kimball model with hybridization" @default.
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- W2051248636 doi "https://doi.org/10.1103/physrevb.69.073103" @default.
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