Braneworlds, graviton production, dynamical Casimir effect
Ruth Durrer, Marcus Ruser, Marc Vonlanthen, Peter Wittwer
TL;DR
This paper explores how the motion of a 3+1 dimensional brane in a 5D anti-de Sitter bulk can induce graviton production through the dynamical Casimir effect, linking brane cosmology with quantum field phenomena.
Contribution
It presents the first analysis of graviton creation due to brane motion in a warped 5D bulk, focusing on the simplest scenario with only gravitons in the bulk.
Findings
Demonstrates graviton production from brane dynamics
Connects brane cosmology with quantum particle creation
Provides a framework for studying quantum effects in higher-dimensional models
Abstract
If our Universe is a 3+1 brane in a warped 4+1 dimensional bulk so that its expansion can be understood as the motion of the brane in the bulk, the time dependence of the boundary conditions for arbitrary bulk fields can lead to particle creation via the dynamical Casimir effect. In this talk I report results for the simplest such scenario, when the only particle in the bulk is the graviton and the bulk is the 5 dimensional anti-de Sitter spacetime.
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