Pair creation: back-reactions and damping

Bloch, J. C. R.; Mizerny, V. A.; Prozorkevich, A. V.; Roberts, C. D.; Schmidt, S. M.; Smolyansky, S. A.; Vinnik, D. V.

Pair creation: back-reactions and damping

Authors

Description

We solve the quantum Vlasov equation for fermions and bosons, incorporating spontaneous pair creation in the presence of back-reactions and collisions. Pair creation is initiated by an external impulse field and the source term is non-Markovian. A simultaneous solution of Maxwell's equation in the presence of feedback yields an internal current and electric field that exhibit plasma oscillations with a period tau_pl. Allowing for collisions, these oscillations are damped on a time-scale, tau_r, determined by the collision frequency. Plasma oscillations cannot affect the early stages of the formation of a quark-gluon plasma unless tau_r >> tau_pl and tau_pl approx. 1/Lambda_QCD approx 1 fm/c.
16 pages, 6 figure, REVTEX, epsfig.sty