Results 71 to 80 of about 4,823,752 (344)
Model of massless relativistic particle with continuous spin and its twistorial description
Journal of High Energy Physics, 2018 We propose a new world-line Lagrangian model of the D= 4 massless relativistic particle with continuous spin and develop its twistorial formulation. The description uses two Penrose twistors subjected to four first class constraints.
I. L. Buchbinder +3 more
doaj +1 more source
Twistors, the ASD Yang-Mills equations and 4d Chern-Simons theory
Journal 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
THE TWISTOR SPACE OF A QUATERNIONIC CONTACT MANIFOLD [PDF]
, 2010 We show that the Cauchy–Riemann structure on the twistor space of a quaternionic contact structure described by O. Biquard Biquard is normal if and only if the Ricci curvature of the Biquard connection commutes with the endomorphisms in the quaternionic ...
J. Davidov, S. Ivanov, I. Minchev
semanticscholar +1 more source
Twistor Spaces with Meromorphic Functions [PDF]
Proceedings of the American Mathematical Society, 1991 Among the class of Kähler surfaces with zero scalar curvature, only the twistor space of those surfaces which are also Ricci-flat can admit nonconstant meromorphic functions. Moreover, the transcendental degree of the function field of the twistor space over such surfaces is equal to one.
openaire +2 more sources
Advanced Biology, EarlyView.In vitro cancer models are advantageous for studying important processes such as tumorigenesis, cancer growth, invasion, and metastasis. The complexity and biological relevance increase depending on the model structure, organization, and composition of materials and cells.
Kyndra S. Higgins +2 more
wiley +1 more source
Parity Invariance For String In Twistor Space [PDF]
, 2004 Topological string theory with twistor space as the target makes visible some otherwise difficult to see properties of perturbative Yang-Mills theory. But left-right symmetry, which is obvious in the standard formalism, is highly unclear from this point of
W. Edward
semanticscholar +2 more sources
Spinorial higher-spin gauge theory from IKKT model in Euclidean and Minkowski signatures
Journal 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
(Pre-)Hilbert spaces in twistor quantization
, 2013 In twistor theory, the canonical quantization procedure, called twistor quantization, is performed with the twistor operators represented as \hat{Z}^{A}=Z^{A}(\in C) and \hat{\bar{Z}}_{A}=-\frac{\partial}{\partial Z^{A}}.
Deguchi, Shinichi, Note, Jun-ichi
core +1 more source
On the BRST Quantization of the Massless Bosonic Particle in Twistor-Like Formulation [PDF]
, 1996 We study some features of bosonic particle path-integral quantization in a twistor-like approach by use of the BRST-BFV quantization prescription. In the course of the Hamiltonian analysis we observe links between various formulations of the twistor-like
Bandos, Igor +3 more
core +2 more sources
Programmable Reconfiguration of Hybrid 4D Chiral Metamaterials via Mechanical and Thermal Stimuli
Advanced Engineering Materials, EarlyView.A class of hybrid chiral mechanical metamaterials is designed to achieve programmable reconfiguration through soft networks, hinges, and bilayer joints integrated with rigid units. Responsive to mechanical and thermal stimuli, these structures exhibit large volume changes, tunable deformation pathways, and both positive and negative thermal expansion ...
Yunyao Jiang, Siyao Liu, Yaning Li
wiley +1 more source