Fig. 4: Configurable non-Hermitian skin effects.
a–c Calculated eigen-spectra for three box-shaped SCs with different loss configurations (as indicated by the green regions in each unit-cell). Associated with different loss configurations, the higher-order non-Hermitian skin effect is manifested at different corners with different spin-polarizations (as illustrated by the blue and red thick arrows in the box and numerically demonstrated by the acoustic wavefunctions). d–f Other schemes to obtain various non-Hermitian skin effects by engineering loss configurations.
