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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…