Semionic resonating valence bond states

@article{Iqbal2014SemionicRV,
  title={Semionic resonating valence bond states},
  author={Mohsin Iqbal and Didier Poilblanc and Norbert Schuch},
  journal={Physical Review B},
  year={2014},
  volume={90},
  pages={115129}
}
The nature of the kagome Heisenberg antiferromagnet (HAFM) is under ongoing debate. While recent evidence points towards a Z_2 topological spin liquid, the exact nature of the topological phase is still unclear. In this paper, we introduce semionic Resonating Valence Bond (RVB) states, this is, Resonating Valence Bond states which are in the Z_2 ordered double-semion phase, and study them using Projected Entangled Pair States (PEPS). We investigate their physics and study their suitability as… 

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