Resonant interaction between dispersive gravitational waves and scalar massive particles
Asenjo
F
A
author
Mahajan
S
M
author
2020
English
The Klein-Gordon equation is solved in the curved background spacetime created by a dispersive gravitational wave. Unlike solutions of perturbed Einstein equations in vacuum, dispersive gravitational waves do not travel exactly at the speed of light. As a consequence, the gravitational wave can resonantly exchange energy with scalar massive particles. Some details of the resonant interaction are displayed in a calculation demonstrating how relativistic particles (modeled by the Klein-Gordon equation), feeding on such gravitational waves, may be driven to extreme energies.
WOS:000518819200001
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text
10.1103/PhysRevD.101.063010
Asenjo+Mahajan2020
Physical Review D
Phys. Rev. D
2020
Amer Physical Soc
continuing
periodical
academic journal
101
6
4 pp
2470-0010