# Non-Abelian band topology in noninteracting metals

@article{Wu2019NonAbelianBT, title={Non-Abelian band topology in noninteracting metals}, author={Quansheng Wu and Alexey A. Soluyanov and Tom{\'a}{\vs} Bzdu{\vs}ek}, journal={Science}, year={2019}, volume={365}, pages={1273 - 1277} }

The topology of line nodes Band structure degeneracies in topological materials can take the form of lines or even chains of interconnected loops. Wu et al. study theoretically these nodal lines and how they evolve as the system parameters are varied. They focus on a class of materials that have weak spin-orbit coupling and that respect a combination of inversion- and time-reversal symmetry. Noncommutative topological charges are associated with nodal lines in such materials that place… Expand

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1 Department of Physics, The Hong Kong University of Science and Technology, Hong Kong, China 2 Key Laboratory of Artificial Microand Nanostructures of Ministry of Education and School of Physics and… Expand

Experimental observation of non-Abelian topological charges and edge states.

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This work opens the door towards characterization and manipulation of non-Abelian topological charges, which may lead to interesting observables such as trajectory-dependent Dirac/Weyl node collisions in two-dimensional systems, admissible nodal line configurations in three dimensions, and may provide insight into certain strongly correlated phases of twisted bilayer graphene. Expand

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This work is supported by the Hong Kong RGC (AoE/P-02/12, 16310420), the Hong Kong Scholars Program (XJ2019007), the KAUST CRG grant (KAUST20SC01) and the Croucher foundation (CAS20SC01).

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Weyl semimetals are arguably the most paradigmatic form of a gapless topological phase. While the stability of Weyl nodes, as quantified by their topological charge, has been extensively… Expand

Mild reductive rearrangement of oximes and oxime ethers to secondary amines with hydrosilanes catalyzed by B(C6F5)3

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Oximes, its ether derivatives and the corresponding hydroxylamines rearrange to secondary amines when reacted with PhSiH3 and B(C6F5)3 as catalyst. Computations suggest a reduction–rearrangement to… Expand

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