2024/05/28 by Souvik Banerjee, Gideon Vos
Engineering · Physics and Astronomy · #Black Holes and Theoretical Physics #Computational Fluid Dynamics and Aerodynamics #Cosmology and Gravitation Theories
paper · pdf · doi:10.1007/jhep05(2024)309
openalex publication_date 2024/05/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/13
A bstract In this work, we consider the atypical non-equilibrium state found in [1708.06328] which holographically represents a behind-the-horizon excitation in a black hole spacetime. The special feature of this state is that it looks like an equilibrium state when probed by a class of low-energy operators. First, we retrieve this property using the uniformization mapping in the limit of a large central charge, in the process we are able to derive rather than presume approximate thermal physics. Furthermore, in the large- c and high-energy limit, we realize these excitations as elements of the commutant algebra of a GNS-representation of the light operator algebra. Instead of analytically continuing a mixed heavy-light Euclidean correlator to a Lorentzian correlator, we identify the Euclidean correlator as a GNS-linear form and interpret the Lorentzian correlator as a vacuum expectation value of representatives of the light operator algebra on the GNS-vacuum.