@article{Denner:2021:10.1038/s41467-021-25947-z,
author = {Denner, MM and Skurativska, A and Schindler, F and Fischer, MH and Thomale, R and Bzduek, T and Neupert, T},
doi = {10.1038/s41467-021-25947-z},
journal = {Nature Communications},
pages = {1--7},
title = {Exceptional topological insulators},
url = {http://dx.doi.org/10.1038/s41467-021-25947-z},
volume = {12},
year = {2021}
}

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TY  - JOUR
AB  - We introduce the exceptional topological insulator (ETI), a non-Hermitian topological state of matter that features exotic non-Hermitian surface states which can only exist within the three-dimensional topological bulk embedding. We show how this phase can evolve from a Weyl semimetal or Hermitian three-dimensional topological insulator close to criticality when quasiparticles acquire a finite lifetime. The ETI does not require any symmetry to be stabilized. It is characterized by a bulk energy point gap, and exhibits robust surface states that cover the bulk gap as a single sheet of complex eigenvalues or with a single exceptional point. The ETI can be induced universally in gapless solid-state systems, thereby setting a paradigm for non-Hermitian topological matter.
AU  - Denner,MM
AU  - Skurativska,A
AU  - Schindler,F
AU  - Fischer,MH
AU  - Thomale,R
AU  - Bzduek,T
AU  - Neupert,T
DO  - 10.1038/s41467-021-25947-z
EP  - 7
PY  - 2021///
SN  - 2041-1723
SP  - 1
TI  - Exceptional topological insulators
T2  - Nature Communications
UR  - http://dx.doi.org/10.1038/s41467-021-25947-z
UR  - https://www.ncbi.nlm.nih.gov/pubmed/34584085
UR  - https://www.nature.com/articles/s41467-021-25947-z
UR  - http://hdl.handle.net/10044/1/105763
VL  - 12
ER  - 

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