Akademik Veri Yönetim Sistemi
JOURNAL OF MATHEMATICAL PHYSICS, cilt.34, sa.2, ss.690-699, 1993 (SCI İndekslerine Giren Dergi)
It is shown that quantum fluctuations, in particular vacuum polarization, vanish in the background of a spherical impulsive wave solution of the Einstein field equations, recently found by Nutku and Penrose. The calculation is done in first-order perturbation theory but arguments are given why it should persist to all orders.