Quantum spin nematics, dimerization, and deconfined criticality in quasi-one dimensional spin-1 magnets

Abstract

We study theoretically the destruction of spin nematic order due to quantum fluctuations in quasi-one dimensional spin-1 magnets. If the nematic ordering is disordered by condensing disclinations then quantum Berry phase effects induce dimerization in the resulting paramagnet. We develop a theory for a Landau-forbidden second order transition between the spin nematic and dimerized states found in recent numerical calculations. Numerical tests of the theory are suggested.

4+ pages

References in corpus (3)

• "Deconfined" quantum critical points
• Quantum criticality beyond the Landau-Ginzburg-Wilson paradigm
• Spin nematic correlations in bilinear-biquadratic S=1 spin chains

Cited by in corpus (7)

• From an Antiferromagnet to a Valence Bond Solid: Evidence for a First Order Phase Transition
• Pairing of Solitons in Two-Dimensional S=1 Magnets
• Quantum critical scaling behavior of deconfined spinons
• Correlations and order parameter at a Coulomb-crystal phase transition in a three-dimensional dimer model
• Exact models for trimerization and tetramerization in spin chains
• Deconfined quantum criticality driven by Dirac fermions in SU(2) antiferromagnets
• Theory of spin nematic to spin-Peierls quantum phase transition in ultracold spin-1 atoms in optical lattices