Spontaneous breaking of (2 + 1)-dimensional Lorentz symmetry by an antisymmetric tensor

Jia-Hui Huang, Guang-Zhou Guo, Hao-Yu Xie, Qi-Shan Liu, Fang-Qing Deng
2018 Modern Physics Letters A  
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.
doi:10.1142/s0217732318500074 fatcat:mp2rjd6kfbgb7akfmxrkpqv2ey