Intrinsic translational symmetry breaking in a doped Mott insulator

  title={Intrinsic translational symmetry breaking in a doped Mott insulator},
  author={Zheng Zhu and Dong-ning Sheng and Zheng-yu Weng},
  journal={Physical Review B},
Whether a doped hole propagates as a Bloch wave or not is an important issue of doped Mott physics. Here we examine this problem based on the quasiparticle spectral weight $Z$ distribution, calculated by density matrix renormalization group (DMRG). By tuning the anisotropy of a two-leg $t$-$J$ ladder without closing the background spin gap, the $Z$ distribution unambiguously reveals a transition of the single hole state from a Bloch wave to a novel one with spontaneous translational symmetry… 
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