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cond-mat.str-el2010★ 3 cited
Charge-density-wave and topological transitions in interacting Haldane model
Lei Wang, Hao Shi, Shiwei Zhang +3
Haldane model is a noninteracting model for spinless fermions showing nontrivial topological properties. Effect of the electron-electron interaction on the topological phase poses…
cond-mat.quant-gas2010★ 26 cited
Itinerant ferromagnetism in a Fermi gas with contact interaction: Magnetic properties in a dilute Hubbard model
Chia-Chen Chang, Shiwei Zhang, David M. Ceperley
Ground state properties of the repulsive Hubbard model on a cubic lattice are investigated by means of the auxiliary-field quantum Monte Carlo method. We focus on low-density syste…