Results 21 to 30 of about 307 (248)

twistors and gauge fields

open access: yesInternational 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

open access: yesJournal 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 spaces for hyperkähler implosions

open access: yesJournal of Differential Geometry, 2014
We study the geometry of the twistor space of the universal hyperkaehler implosion Q for SU(n). Using the description of Q as a hyperkaehler quiver variety, we construct a holomorphic map from the twistor space Z_Q of Q to a complex vector bundle over P^1, and an associated map of Q to the affine space R of the bundle's holomorphic sections.
Dancer, Andrew   +2 more
openaire   +5 more sources

Twistor space origins of the Newman-Penrose map

open access: yesSciPost Physics, 2022
Recently, we introduced the "Newman-Penrose map", a novel correspondence between a certain class of solutions of Einstein's equations and self-dual solutions of the vacuum Maxwell equations, which we showed was closely related to the classical double ...
Kara Farnsworth, Michael L. Graesser, Gabriel Herczeg
doaj   +1 more source

MHV diagrams in momentum twistor space [PDF]

open access: yesJournal of High Energy Physics, 2010
36 pages, 13 ...
Bullimore, Mathew   +2 more
openaire   +5 more sources

Twistor Interpretation of Harmonic Spheres and Yang–Mills Fields

open access: yesMathematics, 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
doaj   +1 more source

Hyperkähler geometry of rational curves in twistor spaces

open access: yesComplex Manifolds, 2022
We investigate the pseudo-hyperkähler geometry of higher degree rational curves in the twistor space of a hyperkähler 4-manifold.
Bielawski Roger, Zhang Naizhen
doaj   +1 more source

4D higher spin black holes with nonlinear scalar fluctuations

open access: yesJournal of High Energy Physics, 2017
We construct an infinite-dimensional space of solutions to Vasiliev’s equations in four dimensions that are asymptotic to AdS spacetime and superpose massless scalar particle modes over static higher spin black holes. Each solution is obtained by a large
Carlo Iazeolla, Per Sundell
doaj   +1 more source

Kählerian Twistor Spaces

open access: yesProceedings of the London Mathematical Society, 1981
The work of R. Penrose has shown the deep relationship between the conformal structure of Minkowski space and the complex geometry of lines in projective three-space. This transformation applies to a more general class of conformal structures and in particular there is a riemannian version, described in [5], which is itself of interest to mathematical ...
openaire   +2 more sources

Noncommutative Twistor Space

open access: yesLetters in Mathematical Physics, 2001
10 pages, Plain ...
openaire   +4 more sources

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