Chiral symmetry in non-Hermitian systems: product rule and Clifford algebra

23 Apr 2020 Rivero Jose D. H. Ge Li

Chiral symmetry provides the symmetry protection for a large class of topological edge states. It exists in non-Hermitian systems as well, and the same anti-commutation relation between the Hamiltonian and a linear chiral operator, i.e., $\{H,\Pi\}=0$, now warrants a symmetric spectrum about the origin of the complex energy plane... (read more)

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  • QUANTUM PHYSICS
  • MATERIALS SCIENCE
  • OPTICS