Results 121 to 130 of about 6,179,788 (353)
Parity Invariance For Strings In Twistor Space
, 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 ...
Witten, Edward
core +1 more source
On Ricci-flat twistor theory [PDF]
Surveys in Differential Geometry, 1999 The author of this interesting paper is the creator of the twistor theory. He defines the main purpose of the paper in the following way: ``The problem of introducing self-dual Weyl curvature into the geometry of twistor space has been referred to as the (gravitational) googly problem of twistor theory\dots{} Somewhat over a year ago, a new approach to
openaire +3 more sources
Advanced Functional Materials, EarlyView.Inspired by octopuses, actuating legs based on soft materials are fabricated with programmed chiroptical properties and mechanical behaviors to achieve dynamic color modulation and reversible shape morphing, and these legs are developed into a modular OCTOID system.
Seung Hui Han +8 more
wiley +1 more source
Twistors and geometric quantisation theory
Reports on Mathematical Physics, 1978 Abstract The basic geometry of twistors is developed as an application of geometric quantisation theory to the conformal group. It is found, however, that the Kahler form is not positive and that the quantised Hilbert space is trivial. This serves both to highlight difficulties in the quantisation theory for semi-simple Lie groups and to point out ...
Carey, A, Hannabuss, K
openaire +3 more sources
Melt Grafting of Geometry‐Tailored Voltage Stabilizers for High‐Performance Polypropylene Insulation
Advanced Functional Materials, EarlyView.A scalable one‐step melt grafting strategy is developed to enhance the dielectric properties of isotactic polypropylene by covalently incorporating thermally stable aromatic voltage stabilizers. This solvent‐free approach improves volume resistivity and DC breakdown strength through deep trap formation and charge localization, offering a sustainable ...
Nazirul Mubin bin Normansah +9 more
wiley +1 more source
The Twisted Photon Associated to Hyper-Hermitian Four-Manifolds
, 1998 The Lax formulation of the hyper-Hermiticity condition in four dimensions is used to derive a potential that generalises Plebanski's second heavenly equation for hyper-Kahler 4-manifolds. A class of examples of hyper-Hermitian metrics which depend on two
Boyer +18 more
core +2 more sources
The Anisotropic Adsorption of De Novo Allosteric Two‐Component Protein Fibers on Mica Surfaces
Advanced Functional Materials, EarlyView.In this study, the interfacial behavior of de novo designed proteins that self‐assemble into tubular architectures with distinct morphologies — small (S), large (L), and helical (H) fibers — at the muscovite mica‐water interface is explored using in situ AFM. Abstract Protein adsorption at solid–liquid interfaces underlies many biomedical and materials
Chenyang Shi +7 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Microscale hydrogels (microgels) feature improved mass transport characteristics supportive of fast actuation and chemical tunability amenable to programmed stimuli response. A unique soft actuator architecture is realized by encapsulating microgels in soft microcirculatory systems which enable the convenient delivery of liquid stimuli for powering and
Nengjian Huang +2 more
wiley +1 more source
Goldstone modes and photonization for higher form symmetries
SciPost Physics, 2019 We discuss generalized global symmetries and their breaking. We extend Goldstone's theorem to higher form symmetries by showing that a perimeter law for an extended $p$-dimensional defect operator charged under a continuous $p$-form generalized global
Diego M. Hofman, Nabil Iqbal
doaj +1 more source
Twisted supersymmetric invariant formulation of Chern-Simons gauge theory on a lattice [PDF]
, 2008 Kazuhiro Nagata, Yong-Shi Wu
openalex +1 more source