scholarly journals Radiation reaction from QED: Lightfront perturbation theory in a plane wave background

2013 ◽  
Vol 88 (2) ◽  
Author(s):  
Anton Ilderton ◽  
Greger Torgrimsson
2003 ◽  
Vol 20 (12) ◽  
pp. S567-S573 ◽  
Author(s):  
Kostas Skenderis ◽  
Marika Taylor

2012 ◽  
Vol 27 (24) ◽  
pp. 1250142 ◽  
Author(s):  
GEN NAKAMURA ◽  
KAZUHIRO YAMAMOTO

We extend our previous work [Phys. Rev. D83, 045030 (2011)], which investigated the first-order quantum effect in the Larmor radiation from a moving charge in a spatially homogeneous time-dependent electric field. Specifically, we investigate the quantum Larmor radiation from a moving charge in a monochromatic electromagnetic plane wave background based on the scalar quantum electrodynamics at the lowest order of the perturbation theory. Using the in–in formalism, we derive the theoretical formula of the total radiation energy from a charged particle in the initial states being at rest and being in a relativistic motion. Expanding the theoretical formula in terms of the Planck constant ℏ, we obtain the first-order quantum effect on the Larmor radiation. The quantum effect generally suppresses the total radiation energy compared with the prediction of the classical Larmor formula, which is a contrast to the previous work. The reason is explained by the fact that the radiation from a moving charge in a monochromatic electromagnetic plane wave is expressed in terms of the inelastic collisions between an electron and photons of the background electromagnetic waves.


2002 ◽  
Vol 2002 (10) ◽  
pp. 066-066 ◽  
Author(s):  
Andrei Parnachev ◽  
Anton V Ryzhov

By an orthodox application of the perturbation theory to the general case of a quantized field, it is shown th at the divergence difficulty hitherto encountered arises from a faulty application of the expansion method. The difficulty, in certain cases, disappears if the degeneracy of the unperturbed system is properly treated by the method of secular perturbation. Physically, this amounts to a rigorous treatm ent of the radiation reaction, in such cases where its effect is strong.


Sign in / Sign up

Export Citation Format

Share Document