Results 31 to 40 of about 4,823,752 (344)
The celestial chiral algebra of self-dual gravity on Eguchi-Hanson space
Journal of High Energy Physics, 2023 We consider the twistor description of classical self-dual Einstein gravity in the presence of a defect operator wrapping a certain ℂℙ1. The backreaction of this defect deforms the flat twistor space to that of Eguchi-Hanson space.
Roland Bittleston +2 more
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Twistor constructions for higher-spin extensions of (self-dual) Yang-Mills
Journal of High Energy Physics, 2021 We present the inverse Penrose transform (the map from spacetime to twistor space) for self-dual Yang-Mills (SDYM) and its higher-spin extensions on a flat background.
Tung Tran
doaj +1 more source
On form factors and correlation functions in twistor space [PDF]
Journal of High Energy Physics, 2016 In this paper, we continue our study of form factors and correlation functions of gauge-invariant local composite operators in the twistor-space formulation of N=4\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage ...
Laura Koster +3 more
semanticscholar +1 more source
A twistorial description of the IKKT-matrix model
Journal of High Energy Physics, 2022 We consider the fuzzy 4-sphere S N 4 $$ {S}_N^4 $$ as a background in the IKKT matrix model, and explore the relation between S N 4 $$ {S}_N^4 $$ and fuzzy twistor space in the semi-classical limit.
Harold C. Steinacker, Tung Tran
doaj +1 more source
Conformal higher spin theory and twistor space actions [PDF]
, 2016 We consider the twistor description of conformal higher spin theories and give twistor space actions for the self-dual sector of theories with spin greater than two that produce the correct flat space-time spectrum.
Philipp Haehnel, Tristan McLoughlin
semanticscholar +1 more source
Twistor spaces for HKT manifolds [PDF]
, 1996 We construct the twistor space associated with an HKT manifold, that is, a hyper-K\"ahler manifold with torsion, a type of geometry that arises as the target space geometry in two-dimensional sigma models with (4,0) supersymmetry.
Bonneau +26 more
core +2 more sources
Twistor Spaces for QKT Manifolds [PDF]
Communications in Mathematical Physics, 1998 25 pages ...
Georgios Papadopoulos +2 more
openaire +3 more sources
Maximally helicity-violating diagrams in twistor space and the twistor action [PDF]
, 2012 MHV diagrams give an efficient Feynman diagram-like formalism for calculating gauge theory scattering amplitudes on momentum space. Although they arise as the Feynman diagrams from an action on twistor space in an axial gauge, the main ingredients were ...
T. Adamo, L. Mason
semanticscholar +2 more sources
Alternative formulations of the twistor double copy
Journal of High Energy Physics, 2022 The classical double copy relating exact solutions of biadjoint scalar, gauge and gravity theories continues to receive widespread attention. Recently, a derivation of the exact classical double copy was presented, using ideas from twistor theory, in ...
Erick Chacón +2 more
doaj +1 more source
All tree-level MHV form factors in N$$ \mathcal{N} $$ = 4 SYM from twistor space [PDF]
, 2016 A bstractWe incorporate all gauge-invariant local composite operators into the twistor-space formulation of N$$ \mathcal{N} $$ = 4 SYM theory, detailing and expanding on ideas we presented recently in [1].
Laura Koster +3 more
semanticscholar +1 more source