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Strings near black holes are Carrollian

Year: 2024
Type: article
Abstract: 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 speed is given by the distance from the horizon. We expand the Polyakov action in powers of this light speed to find a theory of Carrollian strings. We show that the string shrinks to a point to leading order near the horizon, which follows a null geodesic in a two-dimensional Rindler space. At the next-to-leading order the string oscillates in the embedding fields associated with the near-horizon two-sphere. Published by the American Physical Society 2024
DOI: 10.1103/physrevd.110.086009
Authors: Arjun Bagchi, Aritra Banerjee, Jelle Hartong, Emil Have, Kedar S. Kolekar, Mangesh Mandlik
Institutions: Indian Institute of Technology Kanpur, Birla Institute of Technology and Science, Pilani, Maxwell Institute for Mathematical Sciences, University of Edinburgh, Tsinghua University, Indian Institute of Technology Dhanbad
Language: English
Open Access status: hybrid
Awards: G2680867139, G2976016097, G451986476, G4578615001, G4825244267, G517231745, G8809110110, G8990269100
OpenAlex ID: W4403215089
FWCI: 1.656
Cites: 65
Cited by: 23
Related to: 10