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Title: Loop-corrected Virasoro symmetry of 4D quantum gravity

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 celestial sphere at null infinity. Here we show by explicit construction that the effects of the IR divergent part of the anomaly can be eliminated by a one-loop renormalization that shifts T zz .
Authors:
 [1] ;  [1] ;  [1] ;  [1]
  1. Harvard Univ., Cambridge, MA (United States). Center for the Fundamental Laws of Nature
Publication Date:
Grant/Contract Number:
FG02-91ER40654
Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2017; Journal Issue: 8; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Research Org:
Harvard Univ., Cambridge, MA (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; models of quantum gravity; scattering amplitudes; space-time symmetries
OSTI Identifier:
1425399

He, T., Kapec, D., Raclariu, A., and Strominger, A.. Loop-corrected Virasoro symmetry of 4D quantum gravity. United States: N. p., Web. doi:10.1007/JHEP08(2017)050.
He, T., Kapec, D., Raclariu, A., & Strominger, A.. Loop-corrected Virasoro symmetry of 4D quantum gravity. United States. doi:10.1007/JHEP08(2017)050.
He, T., Kapec, D., Raclariu, A., and Strominger, A.. 2017. "Loop-corrected Virasoro symmetry of 4D quantum gravity". United States. doi:10.1007/JHEP08(2017)050. https://www.osti.gov/servlets/purl/1425399.
@article{osti_1425399,
title = {Loop-corrected Virasoro symmetry of 4D quantum gravity},
author = {He, T. and Kapec, D. and Raclariu, A. and Strominger, A.},
abstractNote = {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 celestial sphere at null infinity. Here we show by explicit construction that the effects of the IR divergent part of the anomaly can be eliminated by a one-loop renormalization that shifts T zz .},
doi = {10.1007/JHEP08(2017)050},
journal = {Journal of High Energy Physics (Online)},
number = 8,
volume = 2017,
place = {United States},
year = {2017},
month = {8}
}