NGS-MPS simulations of Hubbard–Holstein models show soft phonons promote 1D phase separation and stabilize 2D stripe phases, including a novel bipolaronic stripe with enlarged unit cell.
(3)] are denoted by⟨· · · ⟩, while those with respect to the electronic wave function|Ψ e⟩are denoted by⟨· · · ⟩ e
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Scalable Simulation of Strongly Correlated Electron-Phonon Systems via Non-Gaussian Matrix Product States
NGS-MPS simulations of Hubbard–Holstein models show soft phonons promote 1D phase separation and stabilize 2D stripe phases, including a novel bipolaronic stripe with enlarged unit cell.