Competing orders and unconventional criticality in the Su-Schrieffer-Heeger model

  title={Competing orders and unconventional criticality in the Su-Schrieffer-Heeger model},
  author={Manuel Weber and Francesco Parisen Toldin and Martin Hohenadler},
  journal={Physical Review Research},
The phase diagram of the one-dimensional Su-Schrieffer-Heeger model of spinless fermions coupled to quantum phonons is determined by quantum Monte Carlo simulations. It differs significantly from previous work. In addition to Luttinger liquid and bond-order-wave (BOW) phases, we find an extended charge-density-wave (CDW) phase. Because of different broken symmetries, BOW and CDW phases are connected by a retardation-driven phase transition. Our results are consistent with the theory of the… 

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