/ Phenomenology-HEP hep-ph/9810452


NonMarkovian effects in strong field pair creation


Schmidt, S.M. (Rostock U.) ; Blaschke, D. (Rostock U.) ; Ropke, G. (Rostock U.) ; Prozorkevich, A.V. (Saratov State U.) ; Smolyansky, S.A. (Saratov State U.) ; Toneev, V.D. (Dubna, JINR)

Published in: Phys.Rev.
Year: 1999
Vol.: D59
Page No: 094005
Pages: 17

Abstract: 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.

Web-Page: http://www.adsabs.harvard.edu/abs/1999PhRvD..59i4005S; http://alice.cern.ch/format/showfull?sysnb=0294153; http://dx.doi.org/10.1103/PhysRevD.59.094005; http://link.aps.org/abstract/PRD/V59/E094005/

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