Spontaneous Breaking of (2+1)-dimensional Lorentz Symmetry by an antisymmetric tensor
Abstract
One kind of spontaneous (2+1)-dimensional Lorentz symmetry breaking is discussed. The symmetry breaking pattern is SO(2,1)→ SO(1,1). Using the coset construction formalism, we derive the Goldstone covariant derivative and the associated covariant gauge field. Finally, the two-derivative low-energy effective action of the Nambu-Goldstone bosons is obtained.
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