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pro vyhledávání: '"Donnay A"'
We construct wavefunctions for unitary irreducible representations (UIRs) of the Bondi-Metzner-Sachs (BMS) group, i.e. BMS particles, and show that they describe quantum superpositions of (Poincar\'e) particles propagating on inequivalent gravity vac
Externí odkaz:
http://arxiv.org/abs/2412.06002
From a study of the subleading structure of the asymptotic equations of motion in Einstein-Yang-Mills theory, we construct charges that are conserved up to quadratic order in non-radiative vacuum. We then show that these higher spin charges obey the
Externí odkaz:
http://arxiv.org/abs/2412.01647
We investigate the presence of logarithmic CFT doublets in the soft sector of celestial CFT related with supertranslations. We show that the quantum operator associated with a $\log u$ late-time behavior for the asymptotic gravitational shear forms a
Externí odkaz:
http://arxiv.org/abs/2407.17123
Publikováno v:
Computers & Graphics 120: 103937 (2024)
Science communication aims at making key research insights accessible to the broad public. If explanatory and exploratory visualization techniques are combined to do so, the approach is also referred to as exploranation. In this context, the audience
Externí odkaz:
http://arxiv.org/abs/2405.14345
We construct an explicit realization of the action of the $Lw_{1+\infty}$ loop algebra on fields at null infinity. This action is directly derived by Penrose transform of the geometrical action of $Lw_{1+\infty}$ symmetries in twistor space, ensuring
Externí odkaz:
http://arxiv.org/abs/2402.00688
Autor:
Donnay, Christopher, Kahle, Matthew
Redistricting is the act of dividing a region into districts for electoral representation. Motivated by this application, we study two questions. How many ways are there to partition the $n\times n$ grid into $n$ contiguous districts of equal size? H
Externí odkaz:
http://arxiv.org/abs/2311.13550
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 12, Pp 1-35 (2024)
Abstract We investigate the presence of logarithmic CFT doublets in the soft sector of celestial CFT related with supertranslations. We show that the quantum operator associated with a log u late-time behavior for the asymptotic gravitational shear f
Externí odkaz:
https://doaj.org/article/bb5bf87bbe3d403ea067e690fc5dde43
Autor:
Donnay, Laura
We review the role that infinite-dimensional symmetries arising at the boundary of asymptotically flat spacetimes play in the context of the celestial holography program. Once recast into the language of conformal field theory, asymptotic symmetries
Externí odkaz:
http://arxiv.org/abs/2310.12922
We revisit gravitational wave (GW) memory as the key to measuring spacetime symmetries, extending beyond its traditional role in GW searches. In particular, we show how these symmetries may be probed via displacement and spin memory observations, res
Externí odkaz:
http://arxiv.org/abs/2310.10718
Soft graviton theorems receive one-loop contributions that are logarithmic in the energy of the soft graviton, and which are closely related to tails of gravitational waveforms. We demonstrate that these logarithmic corrections are encoded in the War
Externí odkaz:
http://arxiv.org/abs/2309.11220