scholarly journals Quantum electrodynamics in the light-front Weyl gauge

1996 ◽  
Vol 54 (8) ◽  
pp. 5135-5147 ◽  
Author(s):  
J. Przeszowski ◽  
H. W. L. Naus ◽  
A. C. Kalloniatis
Keyword(s):  
Quantum Electrodynamics ◽  
Light Front

scholarly journals Light-front QED, Stueckelberg field and infrared divergence

2019 ◽  
Vol 34 (18) ◽  
pp. 1950141 ◽  
Author(s):  
T. R. Govindarajan ◽  
Jai D. More ◽  
P. Ramadevi
Keyword(s):  
Quantum Electrodynamics ◽  
Infrared Divergence ◽  
Light Front ◽  
Vertex Correction ◽  
Leading Order ◽  
Massless Limit ◽  
Abelian Gauge ◽  
Abelian Gauge Theory ◽  
Self Energy

Stueckelberg mechanism introduces a scalar field, known as Stueckelberg field, so that gauge symmetry is preserved in the massive Abelian gauge theory. In this work, we show that the role of the Stueckelberg field is similar to the Kulish and Faddeev coherent state approach to handle infrared (IR) divergences. We expect that the light-front quantum electrodynamics (LFQED) with Stueckelberg field must be IR finite in the massless limit of the gauge boson. We have explicitly shown the cancellation of IR divergences in the relevant diagrams contributing to self-energy and vertex correction at leading order.

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.

Sign in / Sign up

Export Citation Format

Share Document