Fig. 5: Proposed electric circuit configurations for realizing the Hamiltonian.
From: Anomalous non-Hermitian skin effect: topological inequivalence of skin modes versus point gap

The Hamiltonian is given in Eq. (1). The electric elements contain the negative converter with current inversion (INIC), capacitor and wires. YAA, YBB and YCC are capacitance of the capacitor. \({Y}_{AA}^{{\prime} }\) and \({Y}_{CC}^{{\prime} }\) are capacitance of the INIC for a capacitor. A sub-chain, B sub-chain and C sub-chain are respectively connected by those electric devices. YAB and \({Y}_{AB}^{{\prime} }\) being respectively the capacitance of the capacitor and INIC for a capacitor connect A sub-chain and B sub-chain, while YBC and \({Y}_{BC}^{{\prime} }\) connect B sub-chain and C sub-chain. On-site potential is obtained by grounding each node with suitable circuit devices.