Fermionic spinon theory of square lattice spin liquids near the N\'eel state

  title={Fermionic spinon theory of square lattice spin liquids near the N\'eel state},
  author={Alex Thomson and S. Sachdev},
  journal={arXiv: Strongly Correlated Electrons},
  • Alex Thomson, S. Sachdev
  • Published 2017
  • Physics
  • arXiv: Strongly Correlated Electrons
  • Quantum fluctuations of the N\'eel state of the square lattice antiferromagnet are usually described by a $\mathbb{CP}^1$ theory of bosonic spinons coupled to a U(1) gauge field, and with a global SU(2) spin rotation symmetry. Such a theory also has a confining phase with valence bond solid (VBS) order, and upon including spin-singlet charge 2 Higgs fields, deconfined phases with $\mathbb{Z}_2$ topological order possibly intertwined with discrete broken global symmetries. We present dual… CONTINUE READING
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