Abstract
AbstractWe consider the one‐photon annihilation mechanism in a electron ‐ positron quasiparticle plasma (EPP) created from the vacuum in a strong subcritical laser field due to the dynamical Schwinger mechanism. On the basis of a kinetic theory approach we show that the secondary photons have a radiation spectrum proportional to 1/k (flicker noise). This effect is very small for EPP excitations in the optical spectrum but can reach quite observable values in the γ ‐ray region (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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