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- Title
Spontaneous emission in the supercritical QED: What is wrong and what is possible.
- Authors
Grashin, P.; Sveshnikov, K.
- Abstract
Spontaneous positron emission, caused by the supercritical Coulomb source with charge Z and size R , is explored in essentially nonperturbative approach with emphasis on the VP-energy ℰ VP , considered as a function of the Coulomb source parameters Z and R. The specific contribution to ℰ VP , which appears in the supercritical case due to direct Coulomb interaction between VP-charge densities ϱ VP (r) , is outlined and studied in detail. It is shown that after first levels diving into the lower continuum, this contribution to ℰ VP , being properly renormalized, turns out to be negative in contrast to the classical electrostatics and so could play an important role in spontaneous emission, especially for Z just above the first Z cr , 1 . The additional problems of spontaneous emission, caused by the lepton number conservation, are also discussed.
- Subjects
POSITRON emission; COULOMB functions; LEPTON number; ELECTROSTATICS; RENORMALIZATION (Physics); POSITRONS; ELECTRIC fields; QUANTUM electrodynamics
- Publication
International Journal of Modern Physics A: Particles & Fields; Gravitation; Cosmology; Nuclear Physics, 2023, Vol 38, Issue 26/27, p1
- ISSN
0217-751X
- Publication type
Article
- DOI
10.1142/S0217751X23501257