Annotation
This paper is devoted to the calculation of corrections to QED effective action associated with the axial-vector condensate $b^\mu$, which violate the Lorentz invariance. It was shown that the linear in $b^\mu$ contribution to the 1-loop effective action (Chern-Simons term) is absent in the case of a constant electromagnetic field. The contribution, which is quadratic in $b^\mu$, was calculated for the cases of both constant magnetic and electric fields. Asymptotic estimates of the quadratic in $b^\mu$ term for strong and weak field strengths were obtained.
Received: 2009 December 4
Approved: 2010 June 2
PACS:
11.30.Cp Lorentz and Poincaré invariance
12.60.-i Models beyond the standard model
11.10.Ef Lagrangian and Hamiltonian approach
12.20.Ds Specific calculations
12.60.-i Models beyond the standard model
11.10.Ef Lagrangian and Hamiltonian approach
12.20.Ds Specific calculations
© 2016 Publisher M.V.Lomonosov Moscow State University
Authors
A.F. Bubnov, V.Ch. Zhukovskii
Department of Theoretical Physics, Faculty of Physics, Moscow State University, Moscow, 119991, Russia
Department of Theoretical Physics, Faculty of Physics, Moscow State University, Moscow, 119991, Russia