2 papers
cond-mat.mtrl-sci2019
Symmetry-enforced band crossings in trigonal materials: Accordion states and Weyl nodal lines
Y. -H. Chan, Berkay Kilic, Moritz M. Hirschmann +4
Nonsymmoprhic symmetries, such as screw rotations or glide reflections, can enforce band crossings within high-symmetry lines or planes of the Brillouin zone. When these band degen…
cond-mat.mes-hall2019
-symmetric non-Hermitian Dirac semimetals
W. B. Rui, Moritz M. Hirschmann, Andreas P. Schnyder
Parity-time () symmetry plays an important role both in non-Hermitian and topological systems. In non-Hermitian systems symmetry can lead to an entirel…