Revisiting the conformally soft sector with celestial diamonds

Abstract Celestial diamonds encode the structure of global conformal multiplets in 2D celestial CFT and offer a natural language for describing the conformally soft sector. The operators appearing at their left and right corners give rise to conformally soft factorization theorems, the bottom corner...

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Autores principales:	Sabrina Pasterski, Andrea Puhm, Emilio Trevisani
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Conformal Field Theory Space-Time Symmetries Scattering Amplitudes Gauge-gravity correspondence Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/664b2af36c204d3097483ff6ba67e484
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spelling	oai:doaj.org-article:664b2af36c204d3097483ff6ba67e4842021-11-21T12:40:48ZRevisiting the conformally soft sector with celestial diamonds10.1007/JHEP11(2021)1431029-8479https://doaj.org/article/664b2af36c204d3097483ff6ba67e4842021-11-01T00:00:00Zhttps://doi.org/10.1007/JHEP11(2021)143https://doaj.org/toc/1029-8479Abstract Celestial diamonds encode the structure of global conformal multiplets in 2D celestial CFT and offer a natural language for describing the conformally soft sector. The operators appearing at their left and right corners give rise to conformally soft factorization theorems, the bottom corners correspond to conserved charges, and the top corners to conformal dressings. We show that conformally soft charges can be expressed in terms of light ray integrals that select modes of the appropriate conformal weights. They reside at the bottom corners of memory diamonds, and ascend to generalized currents. We then identify the top corners of the associated Goldstone diamonds with conformal Faddeev-Kulish dressings and compute the sub-leading conformally soft dressings in gauge theory and gravity which are important for finding nontrivial central extensions. Finally, we combine these ingredients to speculate on 2D effective descriptions for the conformally soft sector of celestial CFT.Sabrina PasterskiAndrea PuhmEmilio TrevisaniSpringerOpenarticleConformal Field TheorySpace-Time SymmetriesScattering AmplitudesGauge-gravity correspondenceNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENJournal of High Energy Physics, Vol 2021, Iss 11, Pp 1-31 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Conformal Field Theory Space-Time Symmetries Scattering Amplitudes Gauge-gravity correspondence Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Conformal Field Theory Space-Time Symmetries Scattering Amplitudes Gauge-gravity correspondence Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Sabrina Pasterski Andrea Puhm Emilio Trevisani Revisiting the conformally soft sector with celestial diamonds
description	Abstract Celestial diamonds encode the structure of global conformal multiplets in 2D celestial CFT and offer a natural language for describing the conformally soft sector. The operators appearing at their left and right corners give rise to conformally soft factorization theorems, the bottom corners correspond to conserved charges, and the top corners to conformal dressings. We show that conformally soft charges can be expressed in terms of light ray integrals that select modes of the appropriate conformal weights. They reside at the bottom corners of memory diamonds, and ascend to generalized currents. We then identify the top corners of the associated Goldstone diamonds with conformal Faddeev-Kulish dressings and compute the sub-leading conformally soft dressings in gauge theory and gravity which are important for finding nontrivial central extensions. Finally, we combine these ingredients to speculate on 2D effective descriptions for the conformally soft sector of celestial CFT.
format	article
author	Sabrina Pasterski Andrea Puhm Emilio Trevisani
author_facet	Sabrina Pasterski Andrea Puhm Emilio Trevisani
author_sort	Sabrina Pasterski
title	Revisiting the conformally soft sector with celestial diamonds
title_short	Revisiting the conformally soft sector with celestial diamonds
title_full	Revisiting the conformally soft sector with celestial diamonds
title_fullStr	Revisiting the conformally soft sector with celestial diamonds
title_full_unstemmed	Revisiting the conformally soft sector with celestial diamonds
title_sort	revisiting the conformally soft sector with celestial diamonds
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/664b2af36c204d3097483ff6ba67e484
work_keys_str_mv	AT sabrinapasterski revisitingtheconformallysoftsectorwithcelestialdiamonds AT andreapuhm revisitingtheconformallysoftsectorwithcelestialdiamonds AT emiliotrevisani revisitingtheconformallysoftsectorwithcelestialdiamonds
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Revisiting the conformally soft sector with celestial diamonds

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