Three-dimensional Lorentz-violating action


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We demonstrate the generation of the three-dimensional Chern-Simons-like Lorentz-breaking ``mixed quadratic action via an appropriate Lorentz-breaking coupling of vector and scalar fields to the spinor field and study some features of the scalar QED with such a term. We show that the same term emerges through a nonpertubative method, namely the Julia-Toulouse approach of condensation of charges and defects.

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