Physical (ir)relevance of ambiguities to Lorentz and CPT violation in QED
Manuel Perez-Victoria
Abstract
We discuss the regularization and renormalization of QED with Lorentz and CPT violation, and argue that the coefficient of the Chern-Simons term is an independent parameter not determined by gauge invariance. We also study these issues in a model with spontaneous breaking of Lorentz and CPT symmetries and find an explicit relation with the ABJ anomaly. This explains the observed convergence of the induced Chern-Simons term.
Create a lesson
Related papers
The stability of non-Abelian A4 vortices in SO(3) gauge theory
Yoshihiko Abe, Tetsutaro Higaki, Kazuya Murakami et al.
Catalan polynomials for the Wishart-Laguerre β-ensemble
Bei Kang, Lu-Yao Wang, Ke Wu et al.
Nambu's Dynamics, Strings and Gravitized Quantum Theory
Tristan Hübsch, Djordje Minic
Gauge-invariant nonperturbative Wilson action in quantum electrodynamics II
Sorato Nagao, Hiroshi Suzuki
Linear stability matrix and Lyapunov exponents for stationary spacetime
Xu Ye, Shao-Wen Wei
Mutual Information of Measurement in Conformal Field Theories
Israel Klich, Ravisankar Rajagopal, Diana Vaman