The Weyl BMS group and Einstein's equations
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00554745" target="_blank" >RIV/68378271:_____/21:00554745 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11104/0329405" target="_blank" >http://hdl.handle.net/11104/0329405</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP07(2021)170" target="_blank" >10.1007/JHEP07(2021)170</a>
Alternative languages
Result language
angličtina
Original language name
The Weyl BMS group and Einstein's equations
Original language description
We propose an extension of the BMS group, which we refer to as Weyl BMS or BMSW for short, that includes super-translations, local Weyl rescalings and arbitrary diffeomorphisms of the 2d sphere metric. After generalizing the Barnich-Troessaert bracket, we show that the Noether charges of the BMSW group provide a centerless representation of the BMSW Lie algebra at every cross section of null infinity. This result is tantamount to proving that the flux-balance laws for the Noether charges imply the validity of the asymptotic Einstein's equations at null infinity. The extension requires a holographic renormalization procedure, which we construct without any dependence on background fields. The renormalized phase space of null infinity reveals new pairs of conjugate variables. Finally, we show that BMSW group elements label the gravitational vacua.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
<a href="/en/project/EF15_003%2F0000437" target="_blank" >EF15_003/0000437: Cosmology, Gravity and the Dark Sector of the Universe</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of High Energy Physics
ISSN
1029-8479
e-ISSN
1029-8479
Volume of the periodical
2021
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
65
Pages from-to
170
UT code for WoS article
000680867300003
EID of the result in the Scopus database
2-s2.0-85111335643