Results 101 to 110 of about 2,145,711 (307)
Advanced Functional Materials, EarlyView.A solvent‐free mechanochemistry‐enabled supramolecular engineering strategy is developed to directly synthesize covalent‐interconnected two‐dimensional atomic‐layered carbon nitride nanosheets photocatalyst, bypassing conventional top‐down exfoliation requirements.
Fanglei Yao +7 more
wiley +1 more source
Unconventional Topological Weyl Dipole Phonon
Advanced ScienceA pair of Weyl points (WPs) with opposite topological charges can exhibit an additional higher‐order Z2 topological charge, giving rise to the formation of a Z2 Weyl dipole (WD).
Jianhua Wang +7 more
doaj +1 more source
Topological susceptibility near Tc in SU(3) gauge theory
Physics Letters B, 2016 Topological charge susceptibility χt for pure gauge SU(3) theory at finite temperature is studied using anisotropic lattices. The over-improved stout-link smoothing method is utilized to calculate the topological charge.
Guang-Yi Xiong +5 more
doaj +1 more source
Topological Charge of Multi-Color Optical Vortices
Photonics, 2022 The topological charge of an optical vortex is a quantity rather stable against phase distortions, for example, turbulence. This makes the topological charge attractive for optical communications, but for many structured beams it is unknown.
Victor Victorovich Kotlyar +3 more
doaj +1 more source
The QCD topological charge and its thermal dependence: the role of the η′ [PDF]
Journal of High Energy Physics, 2019 We analyze the contribution of the η′ (958) meson in the first two non-trivial moments of the QCD topological charge distribution, namely, the topological susceptibility and the fourth-order cumulant of the vacuum energy density.
Angel G'omez Nicola +2 more
semanticscholar +1 more source
Charged topological black hole pair creation [PDF]
Nuclear Physics B, 1998 32 pages ...
openaire +2 more sources
Multifunctional Microstructured Surfaces by Microcontact Printing of Reactive Microgels
Advanced Functional Materials, EarlyView.Reactive poly(N‐vinylcaprolactam‐co‐glycidyl methacrylate) microgels are used as functional inks to create surface‐grafted arrays on glass via microcontact printing. The patterns (10–50 µm widths and spacings) enable stable binding and post‐functionalization with dyes and peptides.
Inga Litzen +4 more
wiley +1 more source
Optics-to-THz conversion of vortex beams using nonlinear difference frequency generation [PDF]
Компьютерная оптика, 2019 In this paper, using a modified model of slowly varying amplitudes, a process of optics-to-THZ-conversion of vortex beams based on the nonlinear difference frequency generation in a medium with second-order susceptibility is considered.
Valeriy Bagmanov +7 more
doaj +1 more source
Dirac operator index and topology of lattice gauge fields [PDF]
, 1999 The fermionic topological charge of lattice gauge fields, given in terms of a spectral flow of the Hermitian Wilson--Dirac operator, or equivalently, as the index of Neuberger's lattice Dirac operator, is shown to have analogous properties to L\"uscher's
Adams, David H.
core +1 more source
Unveiling higher-order topology via polarized topological charges
Physical Review BHigher-order topological phases (HOTPs) host exotic topological states that go beyond the traditional bulk-boundary correspondence. Up to now, there is still a lack of experimentally measurable momentum-space topological characterization for the HOTPs, which is not conducive to revealing the essential properties of these topological states and also ...
Wei Jia +3 more
openaire +2 more sources