Lossy acoustic metamaterials for higher-order Weyl exceptional ring (IMAGE)

Science China Press

Lossy acoustic metamaterials for higher-order Weyl exceptional ring

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IMAGE1: Lattice model and formation of Weyl exceptional rings. a, Schematic of the 3D lattice in a rhombic prism geometry, with three sublattices in a unit cell. b, Distributions of the Weyl points (left panel) and Weyl exceptional rings (right panel) in the Brillouin zone. The topological charges of Chern number are indicated by the purple (+1) and cyan (-1) colors.

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