Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Savan Kharel"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 7, Pp 1-25 (2024)
Abstract In this paper, we explore correlators of a series of theories in anti-de Sitter space: we present comprehensive results for interactions involving scalars, gluons, and gravitons in multiple dimensions. One aspect of our investigation is the
Externí odkaz:
https://doaj.org/article/e476a463845440c5bffea0e10fe79b49
Autor:
Soner Albayrak, Savan Kharel
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 5, Pp 1-21 (2023)
Abstract This paper presents a calculation of the four gravitons amplitude in (Anti)-de Sitter space, focusing specifically on external gravitons with positive helicity. To achieve this, we employ a generalized recursion method that involves complexi
Externí odkaz:
https://doaj.org/article/c4ae742420c64a8c8d2f30c7932863f0
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 3, Pp 1-27 (2021)
Abstract We explore color-kinematic duality for tree-level AdS/CFT correlators in momentum space. We start by studying the bi-adjoint scalar in AdS at tree-level as an illustrative example. We follow this by investigating two forms of color-kinematic
Externí odkaz:
https://doaj.org/article/079f5b75545149e99879c3de1f5a8802
Autor:
Soner Albayrak, Savan Kharel
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 12, Pp 1-25 (2019)
Abstract In this follow up paper, we calculate higher point tree level graviton Witten diagrams in AdS4 via bulk perturbation theory. We show that by rearranging the bulk to bulk graviton propagators, the calculations effectively reduce to the comput
Externí odkaz:
https://doaj.org/article/340f46ce58e040e4bce7e79ac03d389f
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 10, Pp 1-15 (2019)
Abstract In this paper, we present a simple and iterative algorithm that computes Witten diagrams. We focus on the gauge correlators in AdS in four dimensions in momentum space. These new combinatorial relations will allow one to generate tree level
Externí odkaz:
https://doaj.org/article/d7b5715fe2da44b09f6cf6beec43c37b
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 10, Pp 1-15 (2019)
Journal of High Energy Physics
Journal of High Energy Physics
In this paper, we present a simple and iterative algorithm that computes Witten diagrams. We focus on the gauge correlators in AdS in four dimensions in momentum space. These new combinatorial relations will allow one to generate tree level amplitude
Autor:
Soner Albayrak, Savan Kharel
Publikováno v:
Physical Review
In this work we present a systematic study of AdS$_{d+1}$ loop amplitudes for gluons and gravitons using momentum space techniques. Inspired by the recent progress in tree level computation, we construct a differential operator that can act on a scal
Publikováno v:
Physical Review
Scattering amplitudes of massless particles in Minkowski space can be expressed in a conformal basis by Mellin transforming the momentum space amplitudes to correlation functions on the celestial sphere at null infinity. In this paper, we study celes
Publikováno v:
Physical Review
In this paper, we explore momentum space approach to computing scalar amplitudes in anti--de Sitter (AdS) space. We show that the algorithm derived by Arkani-Hamed, Benincasa, and Postnikov for cosmological wave functions can be straightforwardly ado
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d0602b3433d6327a67f26358e2e804c
https://resolver.caltech.edu/CaltechAUTHORS:20200624-104211648
https://resolver.caltech.edu/CaltechAUTHORS:20200624-104211648
Publikováno v:
Journal of High Energy Physics
Journal of High Energy Physics, Vol 2021, Iss 3, Pp 1-27 (2021)
Journal of High Energy Physics, Vol 2021, Iss 3, Pp 1-27 (2021)
We explore color-kinematic duality for tree-level AdS/CFT correlators in momentum space. We start by studying the bi-adjoint scalar in AdS at tree-level as an illustrative example. We follow this by investigating two forms of color-kinematic duality
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf3706b341e3f2e80843a11c6d069403