31 citations · 36 across the 8 of their papers we have counts for
7 papers · 1 filter
Linearised gravity as edge modes & manifest duality and Lorentz covariance
Calvin Y. -R. Chen, Euihun Joung, Karapet Mkrtchyan
We present the first formulation of linearised gravity in four dimensions which is manifestly Lorentz covariant and democratic, i.e. treats the two frames related by electric-magne…
Holomorphic structure of massive scalar fields in
Calvin Y. -R. Chen, Lukas W. Lindwasser, Massimo Porrati
Scalar field theories in with integer scaling dimensions are characterised by the existence of a pair of (anti-)holomorphic higher-spin currents. We exp…
You've got a Freund--Rubin in Me: The Aretakis Instability of Extremal Black Branes
Calvin Y. -R. Chen, Áron D. Kovács
We investigate how the Aretakis instability affects non-dilatonic extremal black -branes by focusing on their near-horizon geometry. Crucially, the strength of the instability,…
Higher-order chiral scalar from boundary reduction of 3d higher-spin gravity
Calvin Yi-Ren Chen, Euihun Joung, Karapet Mkrtchyan +1
We use a recently proposed covariant procedure to reduce the Chern-Simons action of three-dimensional higher-spin gravity to the boundary, resulting in a Lorentz covariant action f…
Deformations of Extremal Black Holes and the UV
Calvin Y. -R. Chen, Claudia de Rham, Andrew J. Tolley
It has recently been noted that deformations of extremal AdS black holes in four and higher dimensions are generically non-smooth or singular on the horizon. Further, it was found…
Surfin' pp-waves with Good Vibrations: Causality in the presence of stacked shockwaves
Calvin Y. -R. Chen, Claudia de Rham, Aoibheann Margalit +1
Relativistic causality constrains the -matrix both through its analyticity, and by imposing lower bounds on the scattering time delay. These bounds are easiest to determine for…
A cautionary case of casual causality
Calvin Y. -R. Chen, Claudia de Rham, Aoibheann Margalit +1
We distinguish between the notions of asymptotic causality and infrared causality for gravitational effective field theories, and show that the latter gives constraints consistent…