Exact bounds on the ground-state energy of the infinite-U Hubbard model
classification
❄️ cond-mat.str-el
keywords
boundsenergyground-statehubbardinfinite-umodelstateable
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We give upper and lower bounds for the ground-state energy of the infinite-U Hubbard model. In two dimensions, using these bounds we are able to rule out the possibility of phase separation between the undoped-insulating state and an hole-rich state.
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