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On the late-time behavior of Virasoro blocks and a classification of semiclassical saddles

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2]
  1. Boston Univ., Boston, MA (United States); Boston University
  2. Johns Hopkins Univ., Baltimore, MD (United States)
Recent work has demonstrated that black hole thermodynamics and information loss/restoration in AdS3/CFT2 can be derived almost entirely from the behavior of the Virasoro conformal blocks at large central charge, with relatively little dependence on the precise details of the CFT spectrum or OPE coefficients. Here, we elaborate on the non-perturbative behavior of Virasoro blocks by classifying all ‘saddles’ that can contribute for arbitrary values of external and internal operator dimensions in the semiclassical large central charge limit. The leading saddles, which determine the naive semiclassical behavior of the Virasoro blocks, all decay exponentially at late times, and at a rate that is independent of internal operator dimensions. Consequently, the semiclassical contribution of a finite number of high-energy states cannot resolve a well-known version of the information loss problem in AdS3. Furthermore, we identify two infinite classes of sub-leading saddles, and one of these classes does not decay at late times.
Research Organization:
Boston Univ., Boston, MA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0010025
OSTI ID:
1366749
Alternate ID(s):
OSTI ID: 22666381
Journal Information:
Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 4 Vol. 2017; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English

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Bands and gaps in Nekrasov partition function journal January 2018
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Generalized Gibbs Ensemble of 2d CFTs at large central charge in the thermodynamic limit journal January 2019
AdS asymptotic symmetries from CFT mirrors journal March 2019
Black holes and random matrices journal May 2017
Quantum Regge trajectories and the Virasoro analytic bootstrap journal May 2019
The bulk-to-boundary propagator in black hole microstate backgrounds journal June 2019
2D CFT partition functions at late times journal August 2017
Large c Virasoro blocks from monodromy method beyond known limits journal August 2018
Entanglement entropy, OTOC and bootstrap in 2D CFTs from Regge and light cone limits of multi-point conformal block journal August 2019
From conformal blocks to path integrals in the Vaidya geometry journal September 2017
Clocks and rods in Jackiw-Teitelboim quantum gravity journal September 2019
A new handle on three-point coefficients: OPE asymptotics from genus two modular invariance journal October 2017
Chaos, complexity, and random matrices journal November 2017
Probing thermality beyond the diagonal journal December 2018
The conformal bootstrap: Theory, numerical techniques, and applications journal January 2019
Phases of scrambling in eigenstates journal January 2019
Probing thermality beyond the diagonal text January 2018
Black Holes and Random Matrices text January 2016
From Conformal Blocks to Path Integrals in the Vaidya Geometry text January 2017
Bands and gaps in Nekrasov partition function text January 2017
The Conformal Bootstrap: Theory, Numerical Techniques, and Applications text January 2018
Large $c$ Virasoro Blocks from Monodromy Method beyond Known Limits text January 2018
AdS Asymptotic Symmetries from CFT Mirrors text January 2018
The Bulk-to-Boundary Propagator in Black Hole Microstate Backgrounds preprint January 2018
Quantum Regge Trajectories and the Virasoro Analytic Bootstrap text January 2018
Phases of scrambling in eigenstates text January 2019

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