activity
20202026
most citedA cautionary case of casual causality

31 citations · 36 across the 8 of their papers we have counts for

collaborators

8 papers

hep-th2026

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…

hep-th2026

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…

hep-th2025

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,…

hep-th2025

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…

hep-th2024★ 2 cited

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…

hep-th2023

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…

hep-th2022★ 31 cited

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…

quant-ph2020★ 3 cited

Quantifying athermality and quantum induced deviations from classical fluctuation relations

Zoe Holmes, Erick Hinds Mingo, Calvin Y. -R. Chen +1

In recent years a quantum information theoretic framework has emerged for incorporating non-classical phenomena into fluctuation relations. Here we elucidate this framework by expl…