Charge-Density Wave Order on a $\pi$-flux Square Lattice

27 May 2020 Zhang Yuxi Guo Huaiming Scalettar Richard T.

The effect of electron-phonon coupling (EPC) on Dirac fermions has recently been explored numerically on a honeycomb lattice, leading to precise quantitative values for the finite temperature and quantum critical points. In this paper, we use the unbiased determinant Quantum Monte Carlo (DQMC) method to study the Holstein model on a half-filled staggered-flux square lattice, and compare with the honeycomb lattice geometry, presenting results for a range of phonon frequencies $0.1 \leqslant \omega \leqslant 2.0$... (read more)

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