Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2002-09-21
Phys.Rev. D66 (2002) 104009
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
12 pages, REVTEX4
Scientific paper
10.1103/PhysRevD.66.104009
Nonlinear wave interaction of low amplitude gravitational waves in flat space-time is considered. Analogy with optics is established. It is shown that the flat metric space-time is equivalent to a centro-symmetric optical medium, with no second order susceptibility. The lowest order nonlinear effects are those due to the third order nonlinearity and include self-phase modulation and high harmonic generation. These processes lead to an efficient energy dilution of the gravitational wave energy over an increasingly large spectral range.
Cardoso Vitor
Mendonca Tito J.
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