Bubble wall perturbations coupled with gravitational waves

Details Bubble wall perturbations coupled with gravitational waves Bubble wall perturbations coupled with gravitational waves

1997-04-22

arxiv.org/abs/gr-qc/9704058v1

Phys.Rev.D56:3446-3458,1997

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

23 pages with 3 eps figures

Scientific paper

10.1103/PhysRevD.56.3446

We study a coupled system of gravitational waves and a domain wall which is the boundary of a vacuum bubble in de Sitter spacetime. To treat the system, we use the metric junction formalism of Israel. We show that the dynamical degree of the bubble wall is lost and the bubble wall can oscillate only while the gravitational waves go across it. It means that the gravitational backreaction on the motion of the bubble wall can not be ignored.

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