Prog. Theor. Phys. Vol. 67 No. 1 (1982) pp. 333-344
Quantum Non-Abelian Gauge Theory in Time-Dependent External Fields. II
Faculty of Education, Fukui University, Fukui 910
*Department of Physics, Osaka University, Toyonaka 560
(Received August 12, 1981)
We study quantum Yang-Mills fields under the influence of intensive time-dependent background vector potentials induced by point particle sources. The method of mode mixing (i.e., Bogoliubov transformation) is adopted in the description of particle creations. It is shown that the time-dependent external field cannot excite unphysical modes.
DOI : 10.1143/PTP.67.333
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