Alleviating the sign problem in quantum Monte Carlo simulations of spin-orbit-coupled multiorbital Hubbard models

Physical Review B, 2020.

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Abstract:

We present a strategy to alleviate the sign problem in continuous-time quantum Monte Carlo (CTQMC) simulations of the dynamical-mean-field-theory (DMFT) equations for the spin-orbit-coupled multi-orbital Hubbard model. We first identify the combinations of rotationally invariant Hund coupling terms present in the relativistic basis whic...More

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