458 citations
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cond-mat.str-el2008★ 93 cited
Spatially inhomogeneous phase in the two-dimensional repulsive Hubbard model
Chia-Chen Chang, Shiwei Zhang
Using recent advances in auxiliary-field quantum Monte Carlo techniques and the phaseless approximation to control the sign/phase problem, we determine the equation of state in the…
cond-mat.str-el2007★ 39 cited
The Hartree-Fock ground state of the three-dimensional electron gas
Shiwei Zhang, D. M. Ceperley
In 1962, Overhauser showed that within Hartree-Fock (HF) the electron gas is unstable to a spin density wave (SDW) instability. Determining the true HF ground state has remained a…