Creation of boson and fermion pairs in strong fields

Abstract

We analyze a quantum kinetic equation describing both boson and fermion pair production. We explore the solution of the kinetic equation in its Markovian limit. The numerical study shows an enhancement (bosons) or a suppression (fermions) of the pair creation rate according to their quantum statistics. The modification of the time evolution of the distribution function is small but for strong fields more pronounced than for weak fields.

3 pages, LaTeX, epsfig.sty, 4 figures. In Proceedings 'V. Workshop on Nonequilibrium Physics at Short Time Scales', Rostock/Germany, April 27-30, 1998