Loopcorrected Virasoro symmetry of 4D quantum gravity
Abstract
Recently a boundary energymomentum 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 oneloop 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 oneloop renormalization that shifts T _{zz} .
 Authors:

 Harvard Univ., Cambridge, MA (United States). Center for the Fundamental Laws of Nature
 Publication Date:
 Research Org.:
 Harvard Univ., Cambridge, MA (United States)
 Sponsoring Org.:
 USDOE Office of Science (SC), High Energy Physics (HEP) (SC25)
 OSTI Identifier:
 1425399
 Grant/Contract Number:
 FG0291ER40654
 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: 2017; Journal Issue: 8; Journal ID: ISSN 10298479
 Publisher:
 Springer Berlin
 Country of Publication:
 United States
 Language:
 English
 Subject:
 79 ASTRONOMY AND ASTROPHYSICS; models of quantum gravity; scattering amplitudes; spacetime symmetries
Citation Formats
He, T., Kapec, D., Raclariu, A., and Strominger, A. Loopcorrected Virasoro symmetry of 4D quantum gravity. United States: N. p., 2017.
Web. doi:10.1007/JHEP08(2017)050.
He, T., Kapec, D., Raclariu, A., & Strominger, A. Loopcorrected Virasoro symmetry of 4D quantum gravity. United States. doi:10.1007/JHEP08(2017)050.
He, T., Kapec, D., Raclariu, A., and Strominger, A. Wed .
"Loopcorrected 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 = {Loopcorrected Virasoro symmetry of 4D quantum gravity},
author = {He, T. and Kapec, D. and Raclariu, A. and Strominger, A.},
abstractNote = {Recently a boundary energymomentum 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 oneloop 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 oneloop 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}
}
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