Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2011-03-14
Phys.Rev.D83:065020,2011
Physics
High Energy Physics
High Energy Physics - Theory
6 pages, 1 figure
Scientific paper
10.1103/PhysRevD.83.065020
Exact analytical solutions are presented for the time evolution of the density of pairs produced in the QED vacuum by a time-independent, uniform electric field. The mathematical tool used here to describe the pair production is the Dirac-Heisenberg-Wigner function introduced before [Phys. Rev. D 44, 1825 (1991)]. The initial value problem for this function is solved by decomposing the solution into a product of spinors. The equations for spinors are much simpler and are solved analytically. These calculations are nonperturbative since pair production is due to quantum-mechanical tunneling and the explicit solutions clearly exhibit their nonanalytic behavior.
Bialynicki-Birula Iwo
Rudnicki Łukasz
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