The ground state of the two-dimensional Hubbard model
classification
❄️ cond-mat.str-el
cond-mat.supr-con
keywords
groundhubbardincommensuratemodelpeaksstatetwo-dimensionaladaptive
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We have studied the ground state of the two-dimensional Hubbard model by using the adaptive sampling quantum monte carlo method. We found enhancement of the d-wave correlation function, the spin gap and the coexistence of both the commensurate and incommensurate peaks in $S(\vec{q})$, which does not contradict a recent experimental finding that both the resonance peak and the incommensurate peaks reside in the same doping level of YBCO and BSCCO.
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