Radiatively Induced Lorentz and CPT Violation in QED at Finite Temperature
J. R. S. Nascimento (UFPB), R. F. Ribeiro (UFPB), N. F. Svaiter, (CBPF)
TL;DR
This paper investigates how finite temperature affects the induction of Lorentz and CPT violating terms in QED, using derivative expansion and imaginary-time formalism to analyze temperature dependence.
Contribution
It introduces a method to compute the temperature-dependent Chern-Simons term in QED, combining derivative expansion with imaginary-time formalism.
Findings
The Chern-Simons term varies with temperature.
Finite temperature induces Lorentz and CPT violation in QED.
The method provides a way to analyze temperature effects on quantum anomalies.
Abstract
In this paper we evaluate the induced Lorentz and CPT violating Chern-Simons term in the QED action at finite temperature. We do this using the method of derivative expansion of fermion determinants. Also, we use the imaginary-time formalism to calculate the temperature dependence of the Chern-Simons term
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Taxonomy
TopicsQuantum Mechanics and Applications · Noncommutative and Quantum Gravity Theories · Cosmology and Gravitation Theories