QUANTUM HALL SKYRMIONS IN THE FRAMEWORK OF O(4) NONLINEAR SIGMA MODEL

@article{Basu2004QUANTUMHS,
  title={QUANTUM HALL SKYRMIONS IN THE FRAMEWORK OF O(4) NONLINEAR SIGMA MODEL},
  author={B. Basu and S. Dhar and P. Bandyopadhyay},
  journal={International Journal of Modern Physics B},
  year={2004},
  volume={18},
  pages={171-184}
}
A new framework for quantum Hall skyrmions in O(4) nonlinear sigma model is studied here. The size and energy of the skyrmions are determined incorporating the quartic stability term in the Lagrangian. Moreover, the introduction of a θ-term determines the spin and statistics of these skyrmions. 
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