Results 71 to 80 of about 4,018,148 (250)

Notes on scattering amplitudes as differential forms

open access: yesJournal of High Energy Physics, 2018
Inspired by the idea of viewing amplitudes in N = 4 $$ \mathcal{N}=4 $$ SYM as differential forms on momentum twistor space, we introduce differential forms on the space of spinor variables, which combine helicity amplitudes in any four-dimensional gauge
Song He, Chi Zhang
doaj   +1 more source

Twistors, the ASD Yang-Mills equations and 4d Chern-Simons theory

open access: yesJournal of High Energy Physics, 2023
We show that the approaches to integrable systems via 4d Chern-Simons theory and via symmetry reductions of the anti-self-dual Yang-Mills equations are closely related, at least classically.
Roland Bittleston, David Skinner
doaj   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti   +16 more
wiley   +1 more source

Celestial Lw 1+∞ charges from a twistor action

open access: yesJournal of High Energy Physics
The celestial Lw 1+∞ symmetries in asymptotically flat spacetimes have a natural geometric interpretation on twistor space in terms of Poisson diffeomorphisms.
Adam Kmec   +3 more
doaj   +1 more source

Spinorial higher-spin gauge theory from IKKT model in Euclidean and Minkowski signatures

open access: yesJournal of High Energy Physics, 2023
We explore the semi-classical relation between the fuzzy 4-hyperboloid H N 4 $$ {H}_N^4 $$ and non-compact quantized twistor space ℙ N 1 , 2 $$ {\mathbb{P}}_N^{1,2} $$ at large N.
Harold C. Steinacker, Tung Tran
doaj   +1 more source

Hyperkähler Manifolds of Curves in Twistor Spaces [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2014
We discuss hypercomplex and hyperkähler structures obtained from higher degree curves in complex spaces fibring over ${\mathbb{P}}^1$.
openaire   +3 more sources

Twistor Cosmology and Quantum Space-Time [PDF]

open access: yesAIP Conference Proceedings, 2005
The purpose of this paper is to present a model of a quantum space-time in which the global symmetries of space-time are unified in a coherent manner with the internal symmetries associated with the state space of quantum-mechanics. If we take into account the fact that these distinct families of symmetries should in some sense merge and become ...
Brody, D C, Hughston, L P
openaire   +3 more sources

Supersymmetric gauge theories in twistor space

open access: yes, 2007
We construct a twistor space action for ≤ 4 super Yang-Mills theory and show that it is equivalent to its four dimensional spacetime counterpart at the level of perturbation theory.
Mason, L, Skinner, D, Boels, R
core   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

A hidden 2d CFT for self-dual Yang-Mills on the celestial sphere

open access: yesJournal of High Energy Physics
Self-dual Yang-Mills theory admits an underlying infinite dimensional symmetry algebra, which has been obtained from mode expansion of Mellin transformed 4d scattering amplitudes and separately, Koszul duality on twistor space.
Wei Bu, Sean Seet
doaj   +1 more source

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