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In a recent Letter [1] (see also [2]) the authors presented numerical evidence supporting an idea of a direct transition between the superfluid (SF) and Mott insulating (MI) phases in the disordered B...
We simulate the dilute attractive Fermi–Hubbard model in the unitarity regime using a diagrammatic determinant Monte Carlo (MC) algorithm with worm-type updates. We obtain the dependence of the critic...
We report results of quantum Monte Carlo simulations of the Bose-Hubbard model in three dimensions. Critical parameters for the superfluid-to-Mott-insulator transition are determined with significantl...
One of the most promising applications of ultracold gases in optical lattices is the possibility to use them as quantum emulators of more complex condensed matter systems. We provide benchmark calcula...
We establish the phase diagram of the disordered three-dimensional Bose-Hubbard model at unity filling which has been controversial for many years. The theorem of inclusions, proven by Pollet et al. [...
The ground-state energy of the Hubbard model on a Bethe lattice with infinite connectivity at half filling is calculated for the insulating phase. Using Kohn抯 transformation to derive an effective Ham...
Abstract: We study the 1D extended Hubbard model with a weak repulsive short-range interaction in the non-half-filled band case, using non-perturbative Renormalization Group methods and Ward Identitie...
2007Vol.47No.1pp.161-166DOI: Fermion Coherent State Studies of One-Dimensional Hubbard Model LIN Ji,1 GAO Xian-Long,1 and WANG Ke-Lin2 1 Department of Physics, Zhejiang...
2002Vol.37No.2pp.237-242DOI: The Critical Properties of One-Dimensional Extended Hubbard Model WANG Zhi-Guo, ZHANG Yu-Mei and CHEN Hong Department of Physics, Tongji Uni...
2003Vol.39No.1pp.105-108DOI: Charge Gap in One-Dimensional Extended Hubbard Model DING Guo-Hui, YE Fei, and XU Bo-Wei Department of Physics, Shanghai Jiao Tong Universit...
2004Vol.41No.2pp.183-188DOI: Exact Numerical Solutions of Bose-Hubbard Model ZHANG Dan and PAN Feng Department of Physics, Liaoning Normal University, Dalian 116029, Ch...

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