4D Circuit Lattice (IMAGE) Science China Press Caption (a) The 4D circuit lattice realized on a 2D plane. A pair of Weyl points with the same chirality are localized on the three-dimensional boundary. (b) The bulk band structures and the boundary Weyl states (red lines). (c) Schematic of the chirality of Weyl states. Credit ©Science China Press Usage Restrictions Use with credit. 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.