Unit Cell of Circuit Board (IMAGE) University of Würzburg Caption On the right, a unit cell cutout of the circuit board, which was built to demonstrate the non-Hermitian skin effect, is shown. In (a), the underlying theoretical non-Hermitian model is sketched, which describes the couplings between adjacent nodes. (b) depicts a schematic diagram of the full circuit chain with 20 unit cells with either periodic (without boundary) or open boundary conditions. (c) Circuit schematic of the periodically repeated unit cell with two internal nodes. Credit Chair of Theoretical Physics I / University of Wuerzburg Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.