31 citations · 57 across the 5 of their papers we have counts for
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cond-mat.mes-hall2021
Sign freedom of non-Abelian topological charges in phononic and photonic topological insulators
Haedong Park, Sang Soon Oh
The topological nature of nodal lines in a three-band system can be described by non-Abelian topological charges called quaternion numbers. Due to the gauge freedom of the eigensta…
physics.optics2021★ 31 cited
Non-Abelian charged nodal links in dielectric photonic crystal
Haedong Park, Stephan Wong, Xiao Zhang +1
A nodal link is a special form of a line degeneracy (a nodal line) between adjacent bands in the momentum space of a three-dimensional topological crystal. Unlike nodal chains or k…