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Singular Pair Breaking in the Composite Fermi Liquid Description of the Half-Filled Landau Level

N. E. Bonesteel
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Abstract

Fluctuations of the Chern-Simons gauge field in the composite Fermi liquid description of the half-filled Landau level are pair breaking in all angular momentum channels. For short-range electron-electron interactions these fluctuations are sufficiently strong to drive any T=0 pairing transition first order. For Coulomb interactions these fluctuations are weaker and a continuous transition is possible.

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N. E. Bonesteel. 1998-07-22. Singular Pair Breaking in the Composite Fermi Liquid Description of the Half-Filled Landau Level. https://doi.org/10.1103/physrevlett.82.984

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