Classification of Gravitational Waves in Higher-dimensional Space-time and Possibility of Observation

Abstract

The direct detection of gravitational waves opens the possibility to test general relativity and its alternatives in the strong field regime. Here we focus on the test of the existence of extra dimensions. The classification of gravitational waves in metric gravity theories according to their polarizations in higher-dimensional space-time and the possible observation of these polarizations in 3-dimensional subspace are discussed in this work. And we show that the difference in the response of gravitational waves in detectors with and without extra dimensions can serve as evidence for the existence of extra dimensions.

19 pages, 4 figures

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Cited by in corpus (5)

• Polarization modes of gravitational waves in generalized Proca theory
• Polarization modes of gravitational waves in general modified gravity: General metric theory and general scalar-tensor theory
• Polarization modes of gravitational waves in general Einstein-vector theory
• Testing gravity with gauge-invariant polarization states of gravitational waves: Theory and pulsar timing sensitivity
• Gravitational-wave effects in the most general vector-tensor theory