3 papers
cond-mat.mtrl-sci2022
Nodal lines in momentum space: topological invariants and recent realizations in photonic and other systems
Haedong Park, Wenlong Gao, Xiao Zhang +1
Topological insulators constitute one of the most intriguing phenomena in modern condensed matter theory. The unique and exotic properties of topological states of matter allow for…
physics.optics2021
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…
cond-mat.mes-hall2019
Enhanced higher harmonic generation from nodal topology
Ching Hua Lee, Han Hoe Yap, Tommy Tai +3
Among topological materials, nodal loop semimetals (NLSMs) are arguably the most topologically sophisticated, with their valence and conduction bands intersecting along arbitrarily…