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

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 نشر من قبل T. Senthil
 تاريخ النشر 2007
  مجال البحث فيزياء
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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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