Effective Interactions of Planar Fermions in a Strong Magnetic Field-the Effect of Landau Level Mixing

Details Effective Interactions of Planar Fermions in a Strong Magnetic Field-the Effect of Landau Level Mixing Effective Interactions of Planar Fermions in a Strong Magnetic Field-the Effect of Landau Level Mixing

1994-01-19

arxiv.org/abs/hep-th/9401090v1

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, plain tex

Scientific paper

We obtain expressions for the current operator in the lowest Landau level (L.L.L.) field theory, where higher Landau level mixing due to various external and interparticle interactions is sytematically taken into account. We consider the current operators in the presence of electromagnetic interactions, both Coulomb and time-dependent, as well as local four-fermi interactions. The importance of Landau level mixing for long-range interactions is especially emphasized. We also calculate the edge-current for a finite sample.

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