Light amplification by gravitational waves in scalar-tensor theories of gravity
arXiv:astro-ph/9602154
Abstract
It is shown that the amplification of a light beam by gravitational waves in scalar-tensor theories of gravity is a first order effect in the wave amplitudes. In general relativity, instead, the effect is only of second order.
7 pages, LaTex, no figures, to be published in Astrophysical Letters and Communications