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Title: Virasoro conformal blocks and thermality from classical background fields

Abstract

We show that in 2d CFTs at large central charge, the coupling of the stress tensor to heavy operators can be re-absorbed by placing the CFT in a non-trivial background metric. This leads to a more precise computation of the Virasoro conformal blocks between heavy and light operators, which are shown to be equivalent to global conformal blocks evaluated in the new background. We also generalize to the case where the operators carry U(1) charges. The refined Virasoro blocks can be used as the seed for a new Virasoro block recursion relation expanded in the heavy-light limit. Furthermore, we comment on the implications of our results for the universality of black hole thermality in AdS3 , or equivalently, the eigenstate thermalization hypothesis for CFT2 at large central charge.

Authors:
 [1];  [2];  [3]
  1. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. Johns Hopkins Univ., Baltimore, MD (United States)
  3. Boston Univ., Boston, MA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1238365
Report Number(s):
SLAC-PUB-16625
Journal ID: ISSN 1029-8479; PII: 2614
Grant/Contract Number:  
AC03-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2015; Journal Issue: 11; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; AdS-CFT correspondence; conformal and W Symmetry

Citation Formats

Fitzpatrick, A. Liam, Kaplan, Jared, and Walters, Matthew T. Virasoro conformal blocks and thermality from classical background fields. United States: N. p., 2015. Web. doi:10.1007/JHEP11(2015)200.
Fitzpatrick, A. Liam, Kaplan, Jared, & Walters, Matthew T. Virasoro conformal blocks and thermality from classical background fields. United States. https://doi.org/10.1007/JHEP11(2015)200
Fitzpatrick, A. Liam, Kaplan, Jared, and Walters, Matthew T. Mon . "Virasoro conformal blocks and thermality from classical background fields". United States. https://doi.org/10.1007/JHEP11(2015)200. https://www.osti.gov/servlets/purl/1238365.
@article{osti_1238365,
title = {Virasoro conformal blocks and thermality from classical background fields},
author = {Fitzpatrick, A. Liam and Kaplan, Jared and Walters, Matthew T.},
abstractNote = {We show that in 2d CFTs at large central charge, the coupling of the stress tensor to heavy operators can be re-absorbed by placing the CFT in a non-trivial background metric. This leads to a more precise computation of the Virasoro conformal blocks between heavy and light operators, which are shown to be equivalent to global conformal blocks evaluated in the new background. We also generalize to the case where the operators carry U(1) charges. The refined Virasoro blocks can be used as the seed for a new Virasoro block recursion relation expanded in the heavy-light limit. Furthermore, we comment on the implications of our results for the universality of black hole thermality in AdS3 , or equivalently, the eigenstate thermalization hypothesis for CFT2 at large central charge.},
doi = {10.1007/JHEP11(2015)200},
journal = {Journal of High Energy Physics (Online)},
number = 11,
volume = 2015,
place = {United States},
year = {Mon Nov 30 00:00:00 EST 2015},
month = {Mon Nov 30 00:00:00 EST 2015}
}

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