Enlarged Galilean symmetry of anyons and the Hall effect

  • Horváthy P
  • Martina L
  • Stichel P
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Enlarged planar Galilean symmetry, built of both space-time and field variables and also incorporating the "exotic" central extension is introduced. It is used to describe non-relativistic anyons coupled to an electromagnetic field. Our theory exhibits an anomalous velocity relation of the type used to explain the anomalous Hall effect. The Hall motions, characterized by a Casimir of the enlarged algebra, become mandatory for some critical value(s) of the magnetic field. The extension of our scheme yields the semiclassical effective model of the Bloch electron. © 2005 Elsevier B.V. All rights reserved.

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