nLab Junyeong Ahn

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Selected writings

On classification of nodal lines in topological semimetals:

• Junyeong Ahn, Dongwook Kim, Youngkuk Kim, Bohm-Jung Yang: Band Topology and Linking Structure of Nodal Line Semimetals with $\mathbb{Z}_2$ Monopole Charges, Phys. Rev. Lett. 121 (2018) 106403 [arXiv:1803.11416, doi:10.1103/PhysRevLett.121.106403]

On unstable topology of topological semimetals:

• Junyeong Ahn, Sungjoon Park, Bohm-Jung Yang, Failure of Nielsen-Ninomiya theorem and fragile topology in two-dimensional systems with space-time inversion symmetry: application to twisted bilayer graphene at magic angle, Phys. Rev. X 9 (2019) 021013 [doi:10.1103/PhysRevX.9.021013, arXiv:1808.05375]

Related entries

• nodal braiding in momentum space

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