Non-Hermitian Topological Magnonics - presented by Pr Tao Yu

Non-Hermitian Topological Magnonics

Pr Tao Yu

Pr Tao Yu
Slide at 37:19
1D non-Hermitian skin effect with magnons TY* and Zeng, PRB 105, L180401 (2022)] All the magnonic states accumulate at the boundary! ag=0.02 ag=0.02 L=300 nm L=300 nm site I site I <T R , L > R 2024/10/04 15:37:50
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References
  • 1.
    T. Yu and B. Zeng (2022) Giant microwave sensitivity of a magnetic array by long-range chiral interaction driven skin effect. Physical Review B
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Summary (AI generated)

When γ_R is smaller than γ_L, all states accumulate at the left edge of the area. This is a non-Hermitian effect of magnons. By calculating the energy spectra under periodic boundary conditions, we can understand the non-Hermitian skin effect.