Wave Tails in Time Dependent Backgrounds
arXiv:gr-qc/0201017 · doi:10.1103/PhysRevD.66.024001
Abstract
It is well-known that waves propagating under the influence of a scattering potential develop ``tails''. However, the study of late-time tails has so far been restricted to time-independent backgrounds. In this paper we explore the late-time evolution of spherical waves propagating under the influence of a {\it time-dependent} scattering potential. It is shown that the tail structure is modified due to the temporal dependence of the potential. The analytical results are confirmed by numerical calculations.
4 pages, 2 figures
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