Symmetry-protected nodal phases in non-Hermitian systems

By J. C. Budich, Johan Carlstrom, Flore K. Kunst, E. Bergholtz. Physical review B, 2018

182 citations recorded by the source corpus.

Symmetry plays a paramount role for the classification of phases of matter occurring in nature. Combining symmetry analysis with concepts from topology that allow us to identify global and robust physical properties, new phases of quantum matter, such as topological insulators and semimetals, have been discovered in recent years. Here, the authors analyze in general and exemplify the importance of symmetries to the dissipative counterparts of topological semimetals in non-Hermitian systems, thus introducing the notion of symmetry-protected non-Hermitian nodal phases.

Subfields: Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/350557f5ace60569e581a42e84494fd0ef7912b9

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In Atomic and Molecular Physics, and Optics

Citations in the corpus

Symmetry and Topology in Non-Hermitian Physics (2018, methodology): “[128] J.”
Exceptional topology of non-Hermitian systems (2019, unknown): “…2018; Yao and Wang, 2018), the ubiquitous occurrence of exceptional nodal phases (Szameit et al. , 2011; Kozii and Fu, 2017; Zhou et al. , 2018; Budich et al. , 2019; Okugawa and Yokoyama, 2019; Rui, Hirschmann, and Schnyder, 2019; Yoshida et al. , 2019) with open Fermi-Seifert surfaces…”
Higher-order non-Hermitian skin effect (2020, unknown): “[52] J.”
Perspective on topological states of non-Hermitian lattices (2019, background): “counterpart of higher-order topological states explored by Edvardsson and others [156, 157, 158], or the use of non-Hermiticity to model the finite lifetime introduced by electron-electron or electron-phonon interactions [25] and the search for gapless topological phases in the nonHermitian arena [1”