Lorentz violation with an antisymmetric tensor
Brett AltschulDepartment of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USAQuentin G. BaileyPhysics Department, Embry-Riddle Aeronautical University, Prescott, Arizona 86301, USAV. Alan KosteleckýPhysics Department, Indiana University, Bloomington, Indiana 47405, USA
2010en
ABI
Abstract
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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