Results 21 to 30 of about 4,823,752 (344)
Twistor formulation of massless 6D infinite spin fields
Nuclear Physics B, 2021 We construct massless infinite spin irreducible representations of the six-dimensional Poincaré group in the space of fields depending on twistor variables. It is shown that the massless infinite spin representation is realized on the two-twistor fields.
I.L. Buchbinder +2 more
doaj +1 more source
N $$ \mathcal{N} $$ = 7 On-shell diagrams and supergravity amplitudes in momentum twistor space [PDF]
Journal of High Energy Physics, 2020 We derive an on-shell diagram recursion for tree-level scattering amplitudes in N $$ \mathcal{N} $$ = 7 supergravity. The diagrams are evaluated in terms of Grassmannian integrals and momentum twistors, generalising previous results of Hodges in momentum
Connor Armstrong +2 more
semanticscholar +1 more source
Ambitwistor strings in six and five dimensions
Journal of High Energy Physics, 2021 Ambitwistor strings are chiral (holomorphic) strings whose target is the space of complex null geodesics, ambitwistor space. We introduce twistor representations of ambitwistor space in 6 and 5 dimensions.
Yvonne Geyer +2 more
doaj +1 more source
Generalized almost even-Clifford manifolds and their twistor spaces
Complex Manifolds, 2021 Motivated by the recent interest in even-Clifford structures and in generalized complex and quaternionic geometries, we introduce the notion of generalized almost even-Clifford structure. We generalize the Arizmendi-Hadfield twistor space construction on
Hernández-Moguel Luis Fernando +1 more
doaj +1 more source
Twistor spaces on foliated manifolds [PDF]
International Journal of Mathematics, 2021 The theory of twistors on foliated manifolds is developed. We construct the twistor space of the normal bundle of a foliation. It is demonstrated that the classical constructions of the twistor theory lead to foliated objects and permit to formulate and prove foliated versions of some well-known results on holomorphic mappings.
Rouzbeh Mohseni, Robert A. Wolak
openaire +3 more sources
Mini-twistors and the Cotton double copy
Journal of High Energy Physics, 2023 The double copy relates quantities in gauge, gravity and related theories. A well-known procedure for relating exact classical solutions is the Weyl double copy in four spacetime dimensions, and a three-dimensional analogue of this — the Cotton double ...
Mariana Carrillo González +4 more
doaj +1 more source
Toward a twistor action for chiral higher-spin gravity [PDF]
Physical Review D, 2022 A covariant twistor action for chiral higher-spin theory in (A)dS and flat space is constructed in terms of a holomorphic Chern-Simons theory on twistor space. The action reproduces all known cubic vertices of chiral higher-spin theory in flat space. The
T. Tran
semanticscholar +1 more source
Energy of sections of the Deligne–Hitchin twistor space [PDF]
Mathematische Annalen, 2019 We study a natural functional on the space of holomorphic sections of the Deligne–Hitchin moduli space of a compact Riemann surface, generalizing the energy of equivariant harmonic maps corresponding to twistor lines.
Florian Beck +2 more
semanticscholar +1 more source
Twistor spaces for hyperkähler implosions [PDF]
Journal 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 Actions for Integrable Systems
Journal of High Energy Physics, 2021 Many integrable systems can be reformulated as holomorphic vector bundles on twistor space. This is a powerful organizing principle in the theory of integrable systems.
Robert F. Penna
doaj +1 more source