Emergent Photons and New Transitions in the O ( 3 ) Sigma Model with Hedgehog Suppression

@inproceedings{Motrunich2003EmergentPA,
  title={Emergent Photons and New Transitions in the O ( 3 ) Sigma Model with Hedgehog Suppression},
  author={Olexei I. Motrunich and Ashvin Vishwanath},
  year={2003}
}
We study the effect of hedgehog suppression in the O(3) sigma model in D=2+1. We show via Monte Carlo simulations that the sigma model can be disordered while effectively forbidding these point topological defects. The resulting paramagnetic state has gauge charged matter with half-integer spin (spinons) and also an emergent gauge field (photons), whose… CONTINUE READING