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Revisit Phase Separation of the Two-Dimensional $t-J$ model by the Power-Lanczos Method | | C. T. Shih
; Y. C. Chen
; T. K. Lee
; | | Date: |
4 Apr 2001 | | Subject: | Strongly Correlated Electrons; Superconductivity | cond-mat.str-el cond-mat.supr-con | | Abstract: | The power-Lanczos (PL) method is one kind of Green’s function Monte-Carlo simulation, which is improved by Lanczos iterations. The ground state energies of strongly-correlated models can be evaluated by this method quite accurately. In this report, the boundary of phase separation (PS) of the two-dimensional $t-J$ model is investigated by the power-Lanczos method and Maxwell construction. The energies are compared with the results evaluated by other methods. Our conclusion is that there is no phase separation for $J/t le 0.4$. | | Source: | arXiv, cond-mat/0104067 | | Services: | Forum | Review | PDF | Favorites | |
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