Results 131 to 140 of about 10,573 (294)
On a construction of the twistor spaces of Joyce metrics
Journal of Algebraic Geometry, 2008 We explicitly construct the twistor spaces of some self-dual metrics with torus action given by D. Joyce. Starting from a fiber space over a projective line whose fibers are compact singular toric surfaces, we apply a number of birational transformations to obtain the desired twistor spaces.
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Higher dimensional generalizations of twistor spaces
Journal of Geometry and Physics, 2017 We construct a generalization of twistor spaces of hypercomplex manifolds and hyper-Kahler manifolds $M$, by generalizing the twistor $\mathbb{P}^{1}$ to a more general complex manifold $Q$. The resulting manifold $X$ is complex if and only if $Q$ admits a holomorphic map to $\mathbb{P}^1$. We make branched double covers of these manifolds.
Lin, Hai, Zheng, Tao
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Advanced Functional Materials, EarlyView.The SERS spectra of reporter molecules adsorbed on chiral gold nanorods depends on the handedness of circularly polarized light (CPL‐SERS). The bisignate plasmonic CD spectra of chiral nanorods provides wavelength‐dependent CPL‐SERS. Selective discrimination of chiral nanorod handedness and different Raman reporters allow highly sensitive codification ...
Andrés Serrano‐Freijeiro +9 more
wiley +1 more source
Carrollian $\mathscr Lw_{1+\infty}$ representation from twistor space
SciPost PhysicsWe construct an explicit realization of the action of the $\mathscr Lw_{1+∞}$ loop algebra on fields at null infinity. This action is directly derived by Penrose transform of the geometrical action of $\mathscr Lw_{1+∞}$ symmetries in twistor space ...
Laura Donnay, Laurent Freidel, Yannick Herfray
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Advanced Functional Materials, EarlyView.Zinc(II) coordination complexes with tunable aryloxy‐imine ligands exhibit controllable supramolecular self‐assembly into hierarchical fibrous structures. Coordination‐driven stacking, not π–π interactions, enables gelation, dynamic assembly/disassembly, and enhanced nanomechanical properties.
Merlin R. Stühler +10 more
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Advanced Functional Materials, EarlyView.The design of cathode materials is the key to solving the practical application of AZIBs. In this work, the formation of the built‐in electric field in the NVO@CC material adjusts the electronic structure, showing high specific capacity and ultra‐long cycle stability, and achieving rapid diffusion of ions and good electrochemical kinetics.
Yan Ran +7 more
wiley +1 more source
N $$ \mathcal{N} $$ = 2 supersymmetry in the twistor description of higher-spin holography
Journal of High Energy PhysicsWe study the holographic duality between higher-spin (HS) gravity in 4d and free vector models in 3d, with special attention to the role of N $$ \mathcal{N} $$ = 2 supersymmetry (SUSY).
Julian Lang, Yasha Neiman
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Twistor spaces with Hermitian Ricci tensor [PDF]
, 1990 Johann Davidov, O. Muškarov
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Compatible Complex Structures on Twistor Spaces
, 2008 Let (M,g) be a Riemannian 4-manifold. The twistor space Z->M is a CP1-bundle whose total space Z admits a natural metric h. The aim of this article is to study properties of complex structures on (Z,h) which are compatible with the CP1-fibration and the ...
Deschamps, Guillaume
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Advanced Functional Materials, EarlyView.This work utilizes poly(heptazine imides) as a model system to demonstrate how fine‐tuning the crystal structure influences the photocatalytic properties of layered carbon nitrides in the hydrogen evolution reaction. In particular, the nature of rotational defects and the hydration shell of cations are key contributors to enhanced hydrogen evolution ...
Diana V. Piankova +11 more
wiley +1 more source