Results 11 to 20 of about 10,652 (317)

Loops in Twistor Space [PDF]

Physical Review D, 2004
We elucidate the one-loop twistor-space structure corresponding to momentum-space MHV diagrams. We also discuss the infrared divergences, and argue that only a limited set of MHV diagrams contain them.
A. Berends, A. Brandhuber, A. Erdélyi, D. C. Dunbar, David A. Kosower, E. Witten, F. Cachazo, F. Cachazo, F. Cachazo, G. Georgiou, G. Georgiou, Iosif Bena, J. B. Wu, J. B. Wu, M. Lou, N. Berkovits, R. Roiban, Radu Roiban, Z. Bern, Z. Bern, Z. Bern, Z. Bern, Z. Bern, Z. Bern, Z. Kunszt, Zvi Bern   +25 more
core   +2 more sources

S-duality in Twistor Space [PDF]

Journal of High Energy Physics, 2012
In type IIB string compactifications on a Calabi-Yau threefold, the hypermultiplet moduli space $M_H$ must carry an isometric action of the modular group SL(2,Z), inherited from the S-duality symmetry of type IIB string theory in ten dimensions.
A Haydys, A Kapustin, A Karlhede, A Neitzke, A Swann, B Haghighat, B Pioline, B Pioline, B Wit de, B Wit de, Boris Pioline, C LeBrun, D Gaiotto, D Gaiotto, D Gaiotto, D Robles-Llana, D Robles-Llana, D Robles-Llana, F Denef, H Gunther, I Antoniadis, I Antoniadis, J Bagger, J Boer de, JM Maldacena, K Becker, K Galicki, L Bao, M Roček, MB Green, NJ Hitchin, P Candelas, R Bohm, S Alexandrov, S Alexandrov, S Alexandrov, S Alexandrov, S Alexandrov, S Alexandrov, S Alexandrov, S Alexandrov, S Alexandrov, S Alexandrov, S Alexandrov, S Cecotti, S Ferrara, S Hosono, Sergei Alexandrov, SM Salamon, U Lindström   +49 more
core   +8 more sources

The S-Matrix in Twistor Space [PDF]

Journal of High Energy Physics, 2009
The simplicity and hidden symmetries of (Super) Yang-Mills and (Super)Gravity scattering amplitudes suggest the existence of a "weak-weak" dual formulation in which these structures are made manifest at the expense of manifest locality.
A Brandhuber, A Brandhuber, A Hodges, A Hodges, AP Hodges, C. Cheung, D Vaman, E Witten, E Witten, F Cachazo, F. Cachazo, FA Berends, J Bedford, J McGreevy, J. Kaplan, JM Drummond, JM Drummond, JM Drummond, JM Drummond, JM Drummond, JM Drummond, JM Drummond, JM Drummond, LF Alday, LJ Mason, LJ Mason, M Abou-Zeid, M Bianchi, MB Green, MB Green, ML Mangano, N Arkani-Hamed, N Beisert, N Berkovits, N Berkovits, N. Arkani-Hamed, NEJ Bjerrum-Bohr, NEJ Bjerrum-Bohr, NEJ Bjerrum-Bohr, NEJ Bjerrum-Bohr, NEJ Bjerrum-Bohr, P Benincasa, PS Howe, R Boels, R Boels, R Britto, R Britto, R Britto, R Kallosh, R Kallosh, R Kallosh, R Penrose, R Penrose, R Penrose, R Penrose, R Penrose, R Roiban, SJ Parke, VA Smirnov, VP Nair, Z Bern, Z Bern, Z Bern, Z Bern, Z Bern, Z Bern, Z Bern, Z Bern, Z Bern, Z Bern, Z Kunszt   +70 more
core   +4 more sources

Integrable deformations from twistor space

SciPost Physics
Integrable field theories in two dimensions are known to originate as defect theories of 4d Chern-Simons and as symmetry reductions of the 4d anti-self-dual Yang-Mills equations.
Lewis T. Cole, Ryan A. Cullinan, Ben Hoare, Joaquin Liniado, Daniel C. Thompson
doaj   +4 more sources

Twistor space for rolling bodies [PDF]

Communications in Mathematical Physics, 2012
On a natural circle bundle T(M) over a 4-dimensional manifold M equipped with a split signature metric g, whose fibers are real totally null selfdual 2-planes, we consider a tautological rank 2 distribution D obtained by lifting each totally null plane ...
An, Daniel, Nurowski, Pawel
core   +3 more sources

Gluing Non-commutative Twistor Spaces [PDF]

The Quarterly Journal of Mathematics, 2021
AbstractWe describe a general procedure, based on Gerstenhaber–Schack complexes, for extending to quantized twistor spaces the Donaldson–Friedman gluing of twistor spaces via deformation theory of singular spaces. We consider in particular various possible quantizations of twistor spaces that leave the underlying spacetime manifold classical, including
Marcolli, Matilde, Penrose, Roger
openaire   +3 more sources

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, S.A. Fedoruk, A.P. Isaev   +2 more
doaj   +1 more source

Transversal Twistor Spaces of Foliations [PDF]

Annals of Global Analysis and Geometry, 1999
The transversal twistor space of a foliation F of an even codimension is the bundle ZF of the complex structures of the fibers of the transversal bundle of F. On ZF, there exists a foliation F' by covering spaces of the leaves of F, and any Bott connection of F produces an ordered pair (I,J) of transversal almost complex structures of F'. The existence
Izu Vaisman
openalex   +3 more sources

Higher-spin self-dual Yang-Mills and gravity from the twistor space

Journal of High Energy Physics, 2023
We lift the recently proposed theories of higher-spin self-dual Yang-Mills (SDYM) and gravity (SDGR) to the twistor space. We find that the most natural room for their twistor formulation is not in the projective, but in the full twistor space, which is ...
Yannick Herfray, Kirill Krasnov, Evgeny Skvortsov   +2 more
doaj   +1 more source

The KLT Kernel in Twistor Space. [PDF]

Commun Math Phys
Abstract The double copy relationship between Yang–Mills theory and general relativity can be stated in terms of a field theory Kawai–Lewellen–Tye (KLT) momentum kernel, which maps two colour-ordered gluon amplitudes to a graviton amplitude at tree-level.
Adamo T, Klisch S.
europepmc   +5 more sources