Resonant interaction between dispersive gravitational waves and scalar massive particles

Felipe A. Asenjo, Swadesh M. Mahajan

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

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.

Original languageEnglish
Article number063010
JournalPhysical Review D
Volume101
Issue number6
DOIs
StatePublished - 15 Mar 2020
Externally publishedYes

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