Kinetic description of fermion production in the oscillator representation

Details Kinetic description of fermion production in the oscillator representation Kinetic description of fermion production in the oscillator representation

2006-11-25

arxiv.org/abs/astro-ph/0611780v1

ActaPhys.Polon.B37:2587-2600,2006

Astronomy and Astrophysics

Astrophysics

14 pages, 3 figures

Scientific paper

We investigate the fermion creation in quantum kinetic theory by applying ``oscillator representation'' approach, which was earlier developed for bosonic systems. We show that in some particular cases (Yukawa-like interaction, fixed direction of external vector field) resulting Kinetic Equation (KE) reduces to KE obtained by time-dependent Bogoliubov transformation method. We conclude ``oscillator representation'' approach to be more universal for the derivation of quantum transport equations in strong space-homogeneous time-dependent fields. We discuss some possible applications of obtained KE to cosmology and particle production in strong laser fields.

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