Emmy Noether showed that fundamental physical laws are just a consequence of simple symmetries. A century later, her insights ...

He made contributions in areas such as one-dimensional quasiperiodic metastructures, two-dimensinal quasicrystalline metamaterials with higher order rotational symmetries, topological modes in ...

Similar to the original LSM theorem, the system should have half-integer spin and translation and rotation symmetries. In open quantum systems, there are two types of symmetries, strong (similar ...