Can be gravitational waves markers for an extra-dimension?

Abstract

The main issue of the present letter is to fix specific features (which turn out being independent of extradimension size) of gravitational waves generated before a dimensional compactification process. Valuable is the possibility to detect our prediction from gravitational wave experiment without high energy laboratory investigation. In particular we show how gravitational waves can bring information on the number of Universe dimensions. Within the framework of Kaluza-Klein hypotheses, a different morphology arises between waves generated before than the compactification process settled down and ordinary 4-dimensional waves. In the former case the scalar and tensor degrees of freedom can not be resolved. As a consequence if were detected gravitational waves having the feature here predicted (anomalous polarization amplitudes), then they would be reliable markers for the existence of an extra dimension.

5 pages, two figure, to appear on Int. Journ. Mod. Phys. D

References in corpus (4)

• Brane-world gravity
• Graviton Cosmology in Universal Extra Dimensions
• Generalized plane-fronted gravitational waves in any dimension
• Optical Activity From Extra Dimension

Cited by in corpus (7)

• Signatures of extra dimensions in gravitational waves
• Interpreting spacetimes of any dimension using geodesic deviation
• Angular and frequency response of the gravitational wave interferometers in the metric theories of gravity
• Gravitational waves and extra dimensions: a short review
• Gravitational Waves as a Probe of the Extra Dimension
• Classification of Gravitational Waves in Higher-dimensional Space-time and Possibility of Observation
• Laser Interferometer in Presence of Scalar field on Gravitational Wave Background