Diffractions from the brane and GW150914

TL;DR

This paper explores how gravitational waves reflecting off brane walls in a braneworld scenario could create detectable interference patterns, potentially explaining the GW150914 event observed by LIGO.

Contribution

It proposes a novel interpretation of GW150914 as an interference pattern caused by reflected gravitational waves in a braneworld model.

Findings

Interference patterns from reflected gravitational waves could be detectable.

GW150914 may be explained by brane reflection effects.

Reflected waves produce spatial intensity variations observable by detectors.

Abstract

In the braneworld scenario the zero mode gravitons are trapped on a brane due to non-linear warping effect, so that gravitational waves can reflect from the brane walls. If the reflected waves form an interference pattern on the brane then it can be detected on existing detectors due to spatial variations of intensity in the pattern. As an example we interpret the LIGO event GW150914 as a manifestation of such interference pattern produced by the burst gravitational waves, emitted by a powerful source inside or outside the brane and reflected from the brane walls.