Strings near black holes are Carrollian

A Bagchi, A Banerjee, J Hartong, E Have, KS Kolekar… - Physical Review D, 2024 - APS
We demonstrate that strings near the horizon of a Schwarzschild black hole, when viewed
by a stationary observer at infinity, probe a string Carroll geometry, where the effective light …

Strings near black holes are Carrollian. Part II

A Bagchi, A Banerjee, J Hartong, E Have… - Journal of High Energy …, 2024 - Springer
A bstract We study classical closed bosonic strings probing the near-horizon region of a non-
extremal black hole and show that this corresponds to understanding string theory in the …