Some interesting features of new massive gravity

Abstract

A proof that new massive gravity - the massive 3D gravity model proposed by Bergshoeff, Hohm and Townsend (BHT) - is the only unitary system at the tree level that can be constructed by augmenting planar gravity through the curvature-squared terms, is presented. Two interesting gravitational properties of the BHT model, namely, time dilation and time delay, which have no counterpart in the usual Einstein 3D gravity, are analyzed as well.

Submitted to Classical and Quantum Gravity

References in corpus (7)

• Massive Gravity in Three Dimensions
• More on Massive 3D Gravity
• Ghost-free, finite, fourth order D=3 (alas) gravity
• More on New Massive Gravity: Exact Solutions
• New Massive Gravity and AdS_4 counterterms
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Cited by in corpus (7)

• Non-local massive gravity
• On asymptotically AdS-like solutions of three dimensional massive gravity
• Classical and tree-level approaches to gravitational deflection in higher-derivative gravity
• New class of spin projection operators for 3D models
• Thin-Shells and Thin-Shell Wormholes in New Massive Gravity
• Renormalizability in $D$-dimensional higher-order gravity
• Interparticle potential energy for D-dimensional electromagnetic models from the corresponding scalar ones