CPT invariance examination in quantum electrodynamics bound systems and production of a muonium or antimuonium in the scattering of electrons or positrons on nuclei

2002 ◽  
Author(s):  
Enver A. Choban ◽  
Georgi A. Kazakov
Keyword(s):  
Quantum Electrodynamics ◽  
Cpt Invariance

scholarly journals Strong magnetic fields in gauge theories

2021 ◽  
Vol 18 (2 Jul-Dec) ◽  
Author(s):  
Hugo Celso Pérez Rojas ◽  
Jorge Luis Acosta Ávalo
Keyword(s):  
Magnetic Field ◽  
Quantum Electrodynamics ◽  
Chemical Potential ◽  
Polarization Operator ◽  
Cpt Invariance ◽  
Spatial Symmetry ◽  
Photon Propagation ◽  
Self Energy ◽  
The Standard Model ◽  
The Magnetic Field

The problem of photon propagation in a medium in presence of a strong magnetic field in the frame of quantum electrodynamics is discussed in the present paper, based on previous literature in this area. The breaking of the spatial symmetry by the magnetic field determine the existence of a set of basic vectors and tensors which must satisfy the gauge and CPT invariance of quantum electrodynamics. The charge symmetric and non-symmetric cases are discussed. In the second case the Faraday effect is produced. A chiral current arises, associated to a pseudovector eigenvector ofthe polarization operator (due to the breaking of the spatial symmetry by the external magnetic field), related to the so-called axial anomaly. The path integrals and functional derivation are widely used to obtain the self-energy and vertex operators, and the Dyson equations. The inadequate introduction of a chiral chemical potential in the standard model is discussed for the Weinberg-Salam model for electroweak interactions.

Energy, Information, and Superluminal Speed in Quantum Electrodynamics

2020 ◽  
pp. 27-33
Author(s):  
Boris A. Veklenko
Keyword(s):  
Electromagnetic Field ◽  
Perturbation Theory ◽  
Quantum Electrodynamics ◽  
Excited Atom ◽  
Standard Quantum ◽  
Energy Information

Without using the perturbation theory, the article demonstrates a possibility of superluminal information-carrying signals in standard quantum electrodynamics using the example of scattering of quantum electromagnetic field by an excited atom.

scholarly journals Quantum electrodynamics in an external constant field

1985 ◽  
Vol 258 ◽  
pp. 435-467 ◽  
Author(s):  
I.A. Batalin ◽  
E.S. Fradkin ◽  
SH.M. Shvartsman
Keyword(s):  
Quantum Electrodynamics ◽  
Constant Field
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