Results 11 to 20 of about 151,262 (161)

(2, 2) Scattering and the celestial torus

open access: yesJournal of High Energy Physics, 2021
Analytic continuation from Minkowski space to (2, 2) split signature spacetime has proven to be a powerful tool for the study of scattering amplitudes. Here we show that, under this continuation, null infinity becomes the product of a null interval with ...
Alexander Atanasov   +4 more
doaj   +1 more source

Uplifting AdS3/CFT2 to flat space holography

open access: yesJournal of High Energy Physics, 2019
Four-dimensional (4D) flat Minkowski space admits a foliation by hyperbolicslices. Euclidean AdS3 slices fill the past and future lightcones of the origin, while dS3 slices fill the region outside the lightcone.
Adam Ball   +4 more
doaj   +1 more source

Loop-corrected Virasoro symmetry of 4D quantum gravity

open access: yesJournal of High Energy Physics, 2017
Recently a boundary energy-momentum tensor T zz has been constructed from the soft graviton operator for any 4D quantum theory of gravity in asymptotically flat space. Up to an “anomaly” which is one-loop exact, T zz generates a Virasoro action on the 2D
T. He   +3 more
doaj   +1 more source

A duality in string theory on AdS3

open access: yesJournal of High Energy Physics, 2023
We consider bosonic string theory on AdS3 supported by Kalb-Ramond flux. It is well known that the α′ exact worldsheet theory is described by the SL(2,R) WZW model.
Indranil Halder   +2 more
doaj   +1 more source

Lorentz symmetry and IR structure of the BFSS matrix model

open access: yesJournal of High Energy Physics, 2023
The BFSS matrix model relates flat space M-theory to a large N limit of matrix quantum mechanics describing N non-relativistic D0-branes. M-theory, being a theory of gravity in flat space, has a rich infrared structure that includes various soft theorems
Adam Tropper, Tianli Wang
doaj   +1 more source

Stringy ER = EPR

open access: yesJournal of High Energy Physics, 2022
The ER = EPR correspondence relates a superposition of entangled, disconnected spacetimes to a connected spacetime with an Einstein-Rosen bridge. We construct examples in which both sides may be described by weakly-coupled string theory.
Daniel Louis Jafferis, Elliot Schneider
doaj   +1 more source

Logarithmic corrections to black hole entropy from Kerr/CFT

open access: yesJournal of High Energy Physics, 2017
It has been shown by A. Sen that logarithmic corrections to the black hole area-entropy law are entirely determined macroscopically from the massless particle spectrum.
Abhishek Pathak   +3 more
doaj   +1 more source

Semi-classical analysis of the string theory cigar

open access: yesJournal of High Energy Physics, 2021
We study the semi-classical limit of the reflection coefficient for the SL(2, ℝ) k /U(1) CFT. For large k, the CFT describes a string in a Euclidean black hole of 2-dimensional dilaton-gravity, whose target space is a cigar with an asymptotically linear ...
Daniel Louis Jafferis, Elliot Schneider
doaj   +1 more source

Extreme black hole anabasis

open access: yesJournal of High Energy Physics, 2021
We study the SL(2) transformation properties of spherically symmetric perturbations of the Bertotti-Robinson universe and identify an invariant μ that characterizes the backreaction of these linear solutions.
Shahar Hadar   +2 more
doaj   +1 more source

Celestial operator product expansions and w1+∞ symmetry for all spins

open access: yesJournal of High Energy Physics, 2022
The operator product expansion of massless celestial primary operators of arbitrary spin is investigated. Poincaré symmetry is found to imply a set of recursion relations on the operator product expansion coefficients of the leading singular terms at ...
E. Himwich, M. Pate, K. Singh
doaj   +1 more source

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