Threshold Phenomena in Intense Electromagnetic Fields
2003-02-01
articles
en
research_article
2019-04-10T14:59
198-211
http://link.springer.com/10.1023%2FA%3A1022276004037
https://scigraph.springernature.com/explorer/license/
The influence of intense electromagnetic fields on the formation and decay of quasistationary states of different quantum systems is investigated based on exact solutions of quantum equations for charged particle motion. The method allows examining systems where a spontaneous decay may occur as well as phenomena that occur only under the action of the field. Different values of the total magnetic moment of the system are taken into account in this consideration. A consistent use of the analytic continuation method allows obtaining nonlinear equations that determine complex energies in an external field. The asymptotic expansions for real and imaginary energy values under the action of weak and strong electromagnetic fields are investigated. The developed approach allows establishing the characteristic values for the length parameters that determine the formation of the processes in superstrong fields. We note that a significant decrease of distances in strong fields may lead to effects with a new characteristic length scale, characterizing a modified quantum electrodynamics (QED) formalism, namely, the “QED with the fundamental mass” formalism.
false
2003-02
2
V. G.
Kadyshevskii
Physical Sciences
V. N.
Rodionov
Kravtsova
G. A.
Springer Nature - SN SciGraph project
Theoretical and Mathematical Physics
2305-3135
0040-5779
pub.1041040459
dimensions_id
readcube_id
c380dec8d4fd5baaf87e173345b9833a3f7c9704e85ecd809b4aa05856f233da
Joint Institute for Nuclear Research, Dubna, Moscow Oblast, Russia
Joint Institute for Nuclear Research
Mandel'
A. M.
Atomic, Molecular, Nuclear, Particle and Plasma Physics
Moscow State Geological Prospecting Academy, Moscow, Russia
Moscow State University
Moscow State University, Moscow, Russia
134
doi
10.1023/a:1022276004037
Moscow State Geological Prospecting Academy, Moscow, Russia