BRST symmetry and fictitious parameters

Abstract

Our goal in this work is to present the variational method of fictitious parameters and its connection with the BRST symmetry. Firstly we implement the method in QED at zero temperature and then we extend the analysis to GQED at finite temperature. As we will see the core of the study is the general statement in gauge theories at finite temperature, assigned by Tyutin work, that the physics does not depend on the gauge choices, covariant or not, due to BRST symmetry.

15 pages

References in corpus (7)

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• Causal approach for the electron-positron scattering in Generalized Quantum Electrodynamics
• Path Integral Quantization of Generalized Quantum Electrodynamics
• Renormalizability of generalized quantum electrodynamics
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Cited by in corpus (9)

• Reduction of order and Fadeev-Jackiw formalism in generalized electrodynamics
• Transition amplitude, partition function and the role of physical degrees of freedom in gauge theories
• Generalized quantum electrodynamics in the framework of Generalized BRST transformation
• Path Integral Quantization of Generalized Stueckelberg Electrodynamics: A Faddeev-Jackiw Approach
• Vacuum Polarization of Generalized Quantum Electrodynamics in the Heisenberg Picture
• Generalized quantum electrodynamics: one-loop correction
• Radiative Corrections in GSDKP
• Planar generalized electrodynamics for one-loop amplitude in the Heisenberg picture
• Møller scattering in $2+1$ of generalized quantum electrodynamics in the heisenberg picture