Pair creation: back-reactions and damping

Details Pair creation: back-reactions and damping Pair creation: back-reactions and damping

1999-07-07

arxiv.org/abs/nucl-th/9907027v1

Phys.Rev.D60:116011,1999

Physics

Nuclear Physics

Nuclear Theory

16 pages, 6 figure, REVTEX, epsfig.sty

Scientific paper

10.1103/PhysRevD.60.116011

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.

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