Quantum spin nematics, dimerization, and deconfined criticality in quasi-1D spin-one magnets |
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Authors: | Grover Tarun Senthil T |
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Institution: | Center for Condensed Matter Theory, Indian Institute of Science, Bangalore, India 560012. |
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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. |
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