Lorentz violation with an antisymmetric tensor

Details Lorentz violation with an antisymmetric tensor Lorentz violation with an antisymmetric tensor

2009-12-24

arxiv.org/abs/0912.4852v1

Phys.Rev.D81:065028,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

18 pages two-column REVTeX

Scientific paper

10.1103/PhysRevD.81.065028

Field theories with spontaneous Lorentz violation involving an antisymmetric 2-tensor are studied. A general action including nonminimal gravitational couplings is constructed, and features of the Nambu-Goldstone and massive modes are discussed. Minimal models in Minkowski spacetime exhibit dualities with Lorentz-violating vector and scalar theories. The post-newtonian expansion for nonminimal models in Riemann spacetime involves qualitatively new features, including the absence of an isotropic limit. Certain interactions producing stable Lorentz-violating theories in Minkowski spacetime solve the renormalization-group equations in the tadpole approximation.

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