Loop-corrected Virasoro symmetry of 4D quantum gravity

Loop-corrected Virasoro symmetry of 4D quantum gravity

Abstract 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. H...

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Main Authors: T. He, D. Kapec, A. Raclariu, A. Strominger
Format: Article
Language:English
Published: SpringerOpen 2017-08-01
Series:Journal of High Energy Physics
Subjects:
Models of Quantum Gravity
Scattering Amplitudes
Space-Time Symmetries
Online Access:http://link.springer.com/article/10.1007/JHEP08(2017)050
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spelling doaj-b7b9a4bd1dcc445ea05269880d5622b52020-11-24T21:35:03ZengSpringerOpenJournal of High Energy Physics1029-84792017-08-012017811210.1007/JHEP08(2017)050Loop-corrected Virasoro symmetry of 4D quantum gravityT. He0D. Kapec1A. Raclariu2A. Strominger3Center for the Fundamental Laws of Nature, Harvard UniversityCenter for the Fundamental Laws of Nature, Harvard UniversityCenter for the Fundamental Laws of Nature, Harvard UniversityCenter for the Fundamental Laws of Nature, Harvard UniversityAbstract 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 .http://link.springer.com/article/10.1007/JHEP08(2017)050Models of Quantum GravityScattering AmplitudesSpace-Time Symmetries
collection DOAJ
language English
format Article
sources DOAJ
author T. He
D. Kapec
A. Raclariu
A. Strominger
spellingShingle T. He
D. Kapec
A. Raclariu
A. Strominger
Loop-corrected Virasoro symmetry of 4D quantum gravity
Journal of High Energy Physics
Models of Quantum Gravity
Scattering Amplitudes
Space-Time Symmetries
author_facet T. He
D. Kapec
A. Raclariu
A. Strominger
author_sort T. He
title Loop-corrected Virasoro symmetry of 4D quantum gravity
title_short Loop-corrected Virasoro symmetry of 4D quantum gravity
title_full Loop-corrected Virasoro symmetry of 4D quantum gravity
title_fullStr Loop-corrected Virasoro symmetry of 4D quantum gravity
title_full_unstemmed Loop-corrected Virasoro symmetry of 4D quantum gravity
title_sort loop-corrected virasoro symmetry of 4d quantum gravity
publisher SpringerOpen
series Journal of High Energy Physics
issn 1029-8479
publishDate 2017-08-01
description Abstract 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 .
topic Models of Quantum Gravity
Scattering Amplitudes
Space-Time Symmetries
url http://link.springer.com/article/10.1007/JHEP08(2017)050
work_keys_str_mv AT the loopcorrectedvirasorosymmetryof4dquantumgravity
AT dkapec loopcorrectedvirasorosymmetryof4dquantumgravity
AT araclariu loopcorrectedvirasorosymmetryof4dquantumgravity
AT astrominger loopcorrectedvirasorosymmetryof4dquantumgravity
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