Phonons as a platform for non-Abelian braiding and its manifestation in layered silicates.

ABSTRACT: Topological phases of matter have revolutionised the fundamental understanding of band theory and hold great promise for next-generation technologies such as low-power electronics or quantum computers. Single-gap topologies have been extensively explored, and a large number of materials have been theoretically proposed and experimentally observed. These ideas have recently been extended to multi-gap topologies with band nodes that carry non-Abelian charges, characterised by invariants that arise by the momentum space braiding of such nodes. However, the constraints placed by the Fermi-Dirac distribution to electronic systems have so far prevented the experimental observation of multi-gap topologies in real materials. Here, we show that multi-gap topologies and the accompanying phase transi

SUBMITTER: Peng B 

PROVIDER: S-EPMC8776786 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature