Reduction of one-dimensional non-Hermitian point-gap topology by correlations

@inproceedings{Yoshida2022ReductionOO,
  title={Reduction of one-dimensional non-Hermitian point-gap topology by correlations},
  author={Tsuneya Yoshida and Yasuhiro Hatsugai},
  year={2022}
}
In spite of extensive works on the non-Hermitian topology, correlations effects remain crucial questions. We hereby analyze correlated non-Hermitian systems with special emphasis on the one-dimensional point-gap topology. Specifically, our analysis elucidates that correlations result in reduction of the topological classification Z × Z → Z for systems of one synthetic dimension with charge U(1) symmetry and spin-parity symmetry. Furthermore, we analyze an extended Hatano-Nelson chain which… 

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References

SHOWING 1-10 OF 20 REFERENCES

and a at

The xishacorene natural products are structurally unique apolar diterpenoids that feature a bicyclo[3.3.1] framework. These secondary metabolites likely arise from the well-studied, structurally

Communications Physics 3

  • 209
  • 2020

Supplemental Material for detailed results for the toy model in zero dimension and the extended Hatano-Nelson chain

    Physics-Uspekhi 44

    • 131
    • 2001

    New J

    • Phys. 15, 065002
    • 2013

    Advances in Physics 69

    • 249
    • 2020

    EPL (Europhysics Letters) 131

    • 27002
    • 2020