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All Bulk and Boundary Unitary Cubic Curvature Theories in Three Dimensions
Ibrahim Gullu, Tahsin Cagri Sisman, Bayram Tekin
We construct all the bulk and boundary unitary cubic curvature parity invariant gravity theories in three dimensions in (anti)-de Sitter spaces. For bulk unitarity, our constructio…
Unitarity analysis of general Born-Infeld gravity theories
Ibrahim Gullu, Tahsin Cagri Sisman, Bayram Tekin
We develop techniques of analyzing the unitarity of general Born-Infeld (BI) gravity actions in D-dimensional spacetimes. Determinantal form of the action allows us to find a compa…
c-functions in the Born-Infeld extended New Massive Gravity
Ibrahim Gullu, Tahsin Cagri Sisman, Bayram Tekin
We derive and study the equations of motion of the Born-Infeld extension of New Massive Gravity for globally and asymptotically (anti-)de Sitter spaces, and show that the assumptio…
Born-Infeld-Horava gravity
Ibrahim Gullu, Tahsin Cagri Sisman, Bayram Tekin
We define various Born-Infeld gravity theories in 3+1 dimensions which reduce to Horava's model at the quadratic level in small curvature expansion. In their exact forms, our actio…
Born-Infeld extension of new massive gravity
Ibrahim Gullu, Tahsin Cagri Sisman, Bayram Tekin
We present a three-dimensional gravitational Born-Infeld theory which reduces to the recently found New Massive Gravity (NMG) at the quadratic level in the small curvature expansio…
Canonical Structure of Higher Derivative Gravity in 3D
Ibrahim Gullu, Tahsin Cagri Sisman, Bayram Tekin
We give an explicitly gauge invariant canonical analysis of linearized quadratic gravity theories in three dimensions for both flat and de-Sitter backgrounds. In flat backgrounds,…