Results 81 to 90 of about 199,377 (193)
Topologically Charged Nodal Surface
, 2017 We report the existence of topologically charged nodal surface, a band degeneracy on a two-dimensional surface in momentum space that is topologically charged. We develop a Hamiltonian for such charged nodal surface, and show that such a Hamiltonian can be implemented in a tight-binding model as well as in an acoustic meta-material.
Xiao, Meng, Fan, Shanhui
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Decomposition of strongly charged topological defects
Physical Review E, 2017 We study decomposition of geometrically enforced nematic topological defects bearing relatively large defect strengths m in effectively two-dimensional planar systems. Theoretically, defect cores are analyzed within the mesoscopic Landau-de Gennes approach in terms of the tensor nematic order parameter.
Samo, Kralj +2 more
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Dual-wavelength laser with topological charge
AIP Advances, 2013 We demonstrate the simultaneous oscillation of different photons with equal orbital angular momentum in solid-state lasers for the first time to our knowledge.
Haohai Yu +7 more
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Topological acoustic triple point
Nature Communications, 2021 The topological characteristics of acoustic phonons with triple degeneracy remain largely unexplored. Here, the authors propose a topological acoustic triple point characterized by a topological charge in a three-band system with PT symmetry.
Sungjoon Park +3 more
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Topological classes of thermodynamics of black holes in perfect fluid dark matter background
European Physical Journal C: Particles and Fields, 2023 In this paper we explore the topological classes of thermodynamics of a family of black holes. In particular we investigate the influence of distinct fields, including the electric field, non-linear magnetic field, along with the perfect fluid matter ...
Muhammad Rizwan, Kimet Jusufi
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Topologically frustrated dynamics of crowded charged macromolecules in charged hydrogels [PDF]
Nature Communications, 2018 AbstractMovement of charged macromolecules in crowded aqueous environments is a ubiquitous phenomenon vital to the various living processes and formulations of materials for health care. While study of diffusion of tracer amounts of probe macromolecules trapped inside concentrated solutions, gels, or random media has led to an enhanced understanding of
Di Jia, Murugappan Muthukumar
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Abelian Dyons in the Maximal Abelian Projection of SU(2) Gluodynamics
, 1998 Correlations of the topological charge Q, the electric current J^e and the magnetic current J^m in SU(2) lattice gauge theory in the Maximal Abelian projection are investigated. It occurs that the correlator > is nonzero for a wide range of values of the
A. S. Kronfeld +13 more
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Laughlin charge pumping from interplay of chiral Dirac and chiral Majorana modes
Physical Review ResearchLaughlin charge pumping has provided critical insights into the topological classification of individual materials, but remains largely unexplored in topological junctions.
Zhan Cao, Yang Feng, Zhi-Hai Liu, Ke He
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A metalens for detecting fractional-order optical vortices
Компьютерная оптикаIn this work, a metalens for detecting an incident field with a fractional topological charge ranging from – 2 to 0 is proposed. The metalens is based on a spiral zone plate with a topological charge of 1.5.
A.G. Nalimov +3 more
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Magnetotransport of Weyl semimetals with ℤ2 topological charge and chiral anomaly
Journal of High Energy Physics, 2019 We calculate the magnetoconductivity of the Weyl semimetal with ℤ2 topological charge and chiral anomaly utilizing the recently developed hydrodynamic theory.
Marek Rogatko, Karol I. Wysokinski
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