dc.contributor.author | Borsten, Leron | |
dc.contributor.author | Jonsson, David Simon Henrik | |
dc.contributor.author | Kim, Hyungrok | |
dc.date.accessioned | 2024-08-16T12:30:01Z | |
dc.date.available | 2024-08-16T12:30:01Z | |
dc.date.issued | 2024-08-08 | |
dc.identifier.citation | Borsten , L , Jonsson , D S H & Kim , H 2024 , ' Out-of-time-order asymptotic observables are quasi-isomorphic to time-ordered amplitudes ' , Journal of High Energy Physics (JHEP) . https://doi.org/10.1007/JHEP08(2024)074 | |
dc.identifier.issn | 1126-6708 | |
dc.identifier.other | ArXiv: http://arxiv.org/abs/2405.11110v1 | |
dc.identifier.other | ORCID: /0000-0001-9008-7725/work/165661860 | |
dc.identifier.uri | http://hdl.handle.net/2299/28101 | |
dc.description | © The Authors. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0). https://creativecommons.org/licenses/by/4.0/ | |
dc.description.abstract | Asymptotic observables in quantum feld theory beyond the familiar S-matrixhave recently attracted much interest, for instance in the context of gravity waveforms. Suchobservables can be understood in terms of Schwinger-Keldysh-type ‘amplitudes’ computedby a set of modifed Feynman rules involving cut internal legs and external legs labelledby time-folds.In parallel, a homotopy-algebraic understanding of perturbative quantum feld theoryhas emerged in recent years. In particular, passing through homotopy transfer, the S-matrixof a perturbative quantum feld theory can be understood as the minimal model of anassociated (quantum) L∞-algebra.Here we bring these two developments together. In particular, we show that SchwingerKeldysh amplitudes are naturally encoded in an L∞-algebra, similar to ordinary scatteringamplitudes. As before, they are computed via homotopy transfer, but using deformationretract data that are not canonical (in contrast to the conventional S-matrix). We furthershow that the L∞-algebras encoding Schwinger-Keldysh amplitudes and ordinary amplitudesare quasi-isomorphic (meaning, in a suitable sense, equivalent). This entails a set of recursionrelations that enable one to compute Schwinger-Keldysh amplitudes in terms of ordinaryamplitudes or vice versa. | en |
dc.format.extent | 28 | |
dc.format.extent | 519010 | |
dc.language.iso | eng | |
dc.relation.ispartof | Journal of High Energy Physics (JHEP) | |
dc.subject | hep-th | |
dc.subject | math-ph | |
dc.subject | math.MP | |
dc.subject | 81T18 (Primary) 17B55, 18G50 (Secondary) | |
dc.title | Out-of-time-order asymptotic observables are quasi-isomorphic to time-ordered amplitudes | en |
dc.contributor.institution | Mathematics and Theoretical Physics | |
dc.contributor.institution | Department of Physics, Astronomy and Mathematics | |
dc.contributor.institution | School of Physics, Engineering & Computer Science | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1007/JHEP08(2024)074 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |