Gossamer supercoductivity and the mean field approximation of a new effective Hubbard model
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❄️ cond-mat.supr-con
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effectivefieldgossamerhubbardmeanmodelstateaccount
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We construct a new effective two-dimensional Hubbard model by taking the different electron occupancy on site into account. The mean field state of the new Hamiltonian gives rise to the gossamer superconducting state proposed by Laughlin recently(cond-mat/0209269).
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