Results 41 to 50 of about 10,652 (317)

Kinematic Lie Algebras from Twistor Spaces

open access: yesPhysical Review Letters, 2023
We analyze theories with color-kinematics duality from an algebraic perspective and find that any such theory has an underlying BV${}^{\color{gray} \blacksquare}$-algebra structure, extending the ideas of arXiv:1912.03110. Conversely, we show that any theory with a BV${}^{\color{gray} \blacksquare}$-algebra features a kinematic Lie algebra that ...
Leron Borsten   +5 more
openaire   +4 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

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

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

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

A Deformation of Twistor Space and a Chiral Mass Term in N=4 Super Yang-Mills Theory [PDF]

open access: yes, 2005
Super twistor space admits a certain (super) complex structure deformation that preserves the Poincare subgroup of the symmetry group PSL(4|4) and depends on 10 parameters.
A.D. Popov   +33 more
core   +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

Degenerations of LeBrun Twistor Spaces [PDF]

open access: yesCommunications in Mathematical Physics, 2010
We investigate various limits of the twistor spaces associated to the self-dual metrics on n CP ^2, the connected sum of the complex projective planes, constructed by C. LeBrun. In particular, we explicitly present the following 3 kinds of degenerations whose limits of the metrics are: (a) LeBrun metrics on (n-1) CP ^2$, (b) (Another) LeBrun metrics on
openaire   +2 more sources

Linear perturbations of quaternionic metrics [PDF]

open access: yes, 2008
We extend the twistor methods developed in our earlier work on linear deformations of hyperkahler manifolds [arXiv:0806.4620] to the case of quaternionic-Kahler manifolds.
Alexandrov, Sergei   +3 more
core   +5 more sources

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