Non-Markovian effects in strong-field pair creation

Details Non-Markovian effects in strong-field pair creation Non-Markovian effects in strong-field pair creation

1998-10-22

arxiv.org/abs/hep-ph/9810452v1

Phys.Rev. D59 (1999) 094005

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, revteX, epsfig.sty, 6 figures

Scientific paper

10.1103/PhysRevD.59.094005

We analyze a quantum kinetic equation describing both boson and fermion pair production and explore analytically and numerically the solution of the non-Markovian kinetic equation. In the Markovian limit of the kinetic equation we find an analytical solution for the single particle distribution function of bosons and fermions. The numerical investigation for a homogeneous, constant electric field shows an enhancement (bosons) or a suppression (fermions) of the pair creation rate according to the symmetry character of the produced particles. For strong fields non-Markovian effects are important while they disappear for weak fields. Hence it is sufficient to apply the low density limit for weak fields but necessary to take into account memory effects for strong fields.

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