Institute for Basic Science - Scientists observe 'quasiparticles' in classical systems for the first time:
https://phys.org/news/2023-01-scientists-quasiparticles-classical.html
#DiracQuasiparticles #Quasiparticle #QuantumMechanics #HexagonalCrystal #Phonons #HydrodynamicMatter #Physics