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cond-mat.str-el2020★ 31 cited
Leveraging Machine Learning to Alleviate Hubbard Model Sign Problems
Jan-Lukas Wynen, Evan Berkowitz, Stefan Krieg +2
Lattice Monte Carlo calculations of interacting systems on non-bipartite lattices exhibit an oscillatory imaginary phase known as the phase or sign problem, even at zero chemical p…
cond-mat.str-el2018★ 21 cited
Avoiding Ergodicity Problems in Lattice Discretizations of the Hubbard Model
Jan-Lukas Wynen, Evan Berkowitz, Christopher Körber +2
The Hubbard model arises naturally when electron-electron interactions are added to the tight-binding descriptions of many condensed matter systems. For instance, the two-dimension…