Results 91 to 100 of about 199,377 (193)
Chiral symmetry breaking and topological charge of zigzag graphene nanoribbons
New Journal of PhysicsInteracting quasi-one-dimensional zigzag graphene nanoribbons display gapped edge excitations. Although the self-consistent Hartree–Fock fields break chiral symmetry, our work demonstrates that zigzag graphene nanoribbons maintain their status as short ...
Hyun Cheol Lee, S-R Eric Yang
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IEEE Photonics Journal, 2019 Singular beams with spatially variant field distributions have various fantastic applications. However, one of the significant challenges that hinder the wide application of singular beams is how to effectively identify the topological charge and the ...
Yanliang He +10 more
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Nonvolatile current-induced topological charge imbalance of magnetic textures
Communications PhysicsThe topological charge of magnetic solitons gives rise to characteristic Hall-type effects, which allows to recognize the nontrivial topology of the spin textures, such as skyrmions or antiskyrmions.
Shangyuan Wang, Lei Qiu, Ka Shen
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European Physical Journal C: Particles and FieldsThe study of circular orbits offers profound insights into the structure of spacetime around black holes. While the topological properties of these orbits are well-established for neutral particles, the influence of electric charge–particularly for ...
Yong Song +5 more
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Observation of a Higher‐Order End Topological Insulator in a Real Projective Lattice
Advanced ScienceThe modern theory of quantized polarization has recently extended from 1D dipole moment to multipole moment, leading to the development from conventional topological insulators (TIs) to higher‐order TIs, i.e., from the bulk polarization as primary ...
Ce Shang +9 more
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Two dimensional CP^2 Model with \theta-term and Topological Charge Distributions
, 1999 Topological charge distributions in 2 dimensional CP^2 model with theta-term is calculated. In strong coupling regions, topological charge distribution is approximately given by Gaussian form as a function of topological charge and this behavior leads to
Imachi, Masahiro +2 more
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Measurement of Orbital Angular Momentum by Self-Interference Using a Plasmonic Metasurface
IEEE Photonics Journal, 2016 We present a flexible method for measuring the orbital angular momentum (OAM) of a linearly polarized beam by means of a metasurface composed of a V-shaped gold plasmonic antenna.
Xiaolin Chen +3 more
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Topological origin of quantized transport in non-Hermitian Floquet chains
Physical Review Research, 2020 We show that non-Hermiticity enables topological phases with unidirectional transport in one-dimensional Floquet chains. The topological signatures of these phases are noncontractible loops in the spectrum of the Floquet propagator that are separated by ...
Bastian Höckendorf +2 more
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High-Capacity Near-Infrared Optical Vortex Sorting and Detection by Nonlinear Dammann Vortex Grating
PhotonicsThis paper demonstrates the sorting and detection of near-infrared vortex light using a nonlinear Dammann vortex grating. By incorporating a forked structure into the nonlinear Dammann grating, the resulting nonlinear Dammann vortex grating is capable of
Hui Zhao +4 more
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Hall conductivity as bulk signature of topological transitions in superconductors
, 2013 Topological superconductors may undergo transitions between phases with different topological numbers which, like the case of topological insulators, are related to the presence of gapless (Majorana) edge states.
Araújo, Miguel A. N. +2 more
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