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cond-mat.str-el2019
Alleviating the Sign Problem in Quantum Monte Carlo Simulations of Spin-Orbit-Coupled Multi-Orbital Hubbard Models
Aaram J. Kim, Philipp Werner, Roser Valentí
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-orbi…
cond-mat.str-el2019
Spin and charge correlations across the metal-to-insulator crossover in the half-filled Hubbard model
Aaram J. Kim, Fedor Simkovic, Evgeny Kozik
The Hubbard model with nearest-neighbour hopping on the square lattice and an average of one electron per site is known to undergo an extended crossover from metallic to insul…