Polarization modes of gravitational waves in three-dimensional massive gravities

Abstract

We find polarization modes of gravitational waves in topologically massive and new massive gravities by using the Newman-Penrose formalism where the null real tetrad is necessary to specify gravitational waves. The number of polarization modes is two for the new massive gravity and one for the topologically massive gravity, which is consistent with the metric-perturbation approach.

15 pages, 1 figure

References in corpus (6)

• Theoretical Aspects of Massive Gravity
• Massive Gravity in Three Dimensions
• More on Massive 3D Gravity
• Renormalizability of Massive Gravity in Three Dimensions
• Nonlinear Dynamics of 3D Massive Gravity
• Logarithmic conformal field theory approach to topologically massive gravity

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• Instability of Schwarzschild-AdS black hole in Einstein-Weyl gravity
• Massive gravitational waves in Chern-Simons modified gravity
• New massive conformal gravity