The charged vacuum in over-critical fields |
| |
Authors: | J Rafelski B Müller W Greiner |
| |
Institution: | Institut für Theoretische Physik der Universität Frankfurt, Frankfurt am Main, Germany |
| |
Abstract: | The concept of over-critical fields, i.e. fields in which spontaneous, energy-less electron-position pair creation may occur, is discussed. It is shown that only a charged vacuum can be a stable ground state of the overcritical field. The time-dependent treatment confirms previous results for the cross sections for the auto-ionizing positrons. The questions in connection with the classical Dirac wave functions in over-critical fields are extensively discussed in the frame of the self-consistent formulation of QED including the effects of vacuum polarization and self-energy. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|