Research / 2021 / Article / Fig 4

Research Article

Non-Hermitian Skin Effect in a Non-Hermitian Electrical Circuit

Figure 4

Experimental results for the eigenvalue and eigenstates of the finite circuit Laplacian under PBC and OBC. (a, b) The imaginary and real part of eigenvalues of the closed-loop circuit Laplacian under PBC, respectively. (c, d) The eigenvalues and their eigenstates of the circuit Laplacian at the mid-gap frequency ω0 for the finite circuit under PBC. (e, f) The imaginary and real part of eigenvalues of the closed-loop circuit Laplacian under OBC, respectively. (g, h) The eigenvalues jn(ω0) and their eigenstates of the circuit Laplacian at the mid gap frequency ω0 for the finite circuit under OBC. Note that the eigenstates are plotted in absolute values.