Energy from the Bulk through Parametric Resonance

TL;DR

This paper shows that energy can be quickly transferred from higher-dimensional bulk fields to brane-localized fields via parametric resonance, with potential implications for cosmology and astrophysics.

Contribution

It introduces a mechanism for rapid energy transfer from bulk to brane through parametric resonance, applicable to various bulk field potentials.

Findings

Energy transfer occurs rapidly during wave reflection.

Parametric resonance excites localized fields effectively.

Mechanism has significant cosmological and astrophysical implications.

Abstract

We demonstrate that energy can be transferred very rapidly from the bulk to the brane through parametric resonance. In a simple realization, we consider a massless bulk field that interacts only with fields localized on the brane. We assume an initial field configuration that has the form of a wave-packet moving towards the brane. During the reflection of the wave-packet by the brane the localized fields can be excited through parametric resonance. The mechanism is also applicable to bulk fields with a potential. The rapid energy transfer can have important cosmological and astrophysical implications.