Broken symmetry of two-component nu =1/2 quantum Hall states.

@article{Ho1995BrokenSO,
  title={Broken symmetry of two-component nu =1/2 quantum Hall states.},
  author={Ho},
  journal={Physical review letters},
  year={1995},
  volume={75 6},
  pages={
          1186-1189
        }
}
  • Ho
  • Published 1 March 1995
  • Physics, Medicine
  • Physical review letters
We show that the recently discovered $\nu=1/2$ quantum Hall states in bilayer systems are triplet p-wave pairing states of composite Fermions, of exactly the same form as $^{3}$He superfluids. The observed persistence (though weakening) of the $\nu=1/2$ state in the two- to one-component crossover region corresponds to a continuous deformation of the so-called (331) state towards the ``Pfaffian" state, identical to the well known A to A$_{1}$ transition in $^{3}$He. This deformation also… 
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