Results 31 to 40 of about 4,907,574 (303)
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
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
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
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
Instantons on the six-sphere and twistors [PDF]
, 2012 We consider the six-sphere S^6=G_2/SU(3) and its twistor space Z=G_2/U(2) associated with the SU(3)-structure on S^6. It is shown that a Hermitian Yang-Mills connection (instanton) on a smooth vector bundle over S^6 is equivalent to a flat partial ...
Lechtenfeld, Olaf, Popov, Alexander D.
core +3 more sources
The connected prescription for form factors in twistor space [PDF]
, 2016 A bstractWe propose a connected prescription formula in twistor space for all tree-level form factors of the stress tensor multiplet operator in N$$ \mathcal{N} $$ = 4 super Yang-Mills, which is a generalisation of the expression of Roiban, Spradlin and ...
A. Brandhuber +4 more
semanticscholar +1 more source
Gravity from rational curves in twistor space. [PDF]
Physical Review Letters, 2012 This Letter presents a new formula which is conjectured to yield all tree amplitudes in N=8 supergravity. The amplitudes are described in terms of higher degree rational maps to twistor space.
F. Cachazo, David Skinner
semanticscholar +1 more source
International Journal of Mathematics and Mathematical Sciences, 1986 We describe briefly the basic ideas and results of the twistor theory. The main points: twistor representation of Minkowsky space, Penrose correspondence and its geometrical properties, twistor interpretation of linear massless fields, Yang-Mills fields (
A. G. Sergeev
doaj +1 more source
The momentum amplituhedron of SYM and ABJM from twistor-string maps
Journal of High Energy Physics, 2022 We study remarkable connections between twistor-string formulas for tree amplitudes in N $$ \mathcal{N} $$ = 4 SYM and N $$ \mathcal{N} $$ = 6 ABJM, and the corresponding momentum amplituhedron in the kinematic space of D = 4 and D = 3, respectively ...
Song He, Chia-Kai Kuo, Yao-Qi Zhang
doaj +1 more source
Twistor Interpretation of Harmonic Spheres and Yang–Mills Fields
Mathematics, 2015 We consider the twistor descriptions of harmonic maps of the Riemann sphere into Kähler manifolds and Yang–Mills fields on four-dimensional Euclidean space.
Armen Sergeev
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