Ruth Gregory et al 2000 Class. Quantum Grav. 17 4437 doi:10.1088/0264-9381/17/21/306
Ruth Gregory1, Valery A Rubakov2 and Sergei M Sibiryakov2
Show affiliationsWithin the framework of a five-dimensional model with one 3-brane and an infinite extra dimension, we discuss a process in which matter escapes from the brane and propagates into the bulk to arbitrarily large distances. An example is a decay of a particle of mass 2m residing on the brane into two particles of mass m that leave the brane and accelerate away. We calculate, in the linearized theory, the metric induced by these particles on the brane. This metric does not obey the four-dimensional Einstein equations and corresponds to a spherical gravity wave propagating along the four-dimensional future lightcone. The four-dimensional spacetime left behind the spherical wave is flat, so the gravitational field induced in the brane world by matter escaping from the brane disappears in a causal way.
11.25.Wx String and brane phenomenology
04.20.-q Classical general relativity
04.50.-h Higher-dimensional gravity and other theories of gravity
83C05 Einstein's equations (general structure, canonical formalism, Cauchy problems)
81T30 String and superstring theories; other extended objects (e.g., branes) (See also 83E30)
Issue 21 (7 November 2000)
Received 13 July 2000
Ruth Gregory et al 2000 Class. Quantum Grav. 17 4437
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