The observation of topologically protected magnetic quasiparticles
(PHYSorg.com Physics)

A team of researchers from Tohoku University, J-PARC, and Tokyo Institute of Technology conducted an in-depth study of magnetic quasiparticles called `triplons.` The team conducted the study with a low-dimensional quantum magnet, Ba2CuSi2O6Cl2, using neutron inelastic scattering by AMATERAS at J-PARC. Their findings lead to the discovery of a new `topologically protected triplon edge state` in the aforementioned compound.