• openAccess   Mechanical Analogue of a Majorana Bound State 

      Chen, Chun‐Wei; Lera, Natalia; Chaunsali, Rajesh; Torrent, Daniel; Álvarez, J. V.; Yang, Jinkyu; San‐José, Pablo; Christensen, Johan Wiley (2019)
      The discovery of topologically nontrivial electronic systems has opened a new age in condensed matter research. From topological insulators to topological superconductors and Weyl semimetals, it is now understood that some ...
    • openAccess   Multiple scattering theory of non-Hermitian sonic second-order topological insulators 

      Rosendo López, María; Zhang, Zhiwang; Torrent, Daniel; Christensen, Johan (2019-10-25)
      Topological phases of sound enable unconventional confinement of acoustic energy at the corners in higher-order topological insulators. These unique states which go beyond the conventional bulk-boundary correspondence have ...