Meet the ‘angulon’, a new quasiparticle found in superfluid helium
by Edwin Cartlidge
“The quasiparticle concept allows physicists to describe complex, many-body interactions in terms of the behaviour of a single particle-like entity. Usually these particles turn up in condensed-matter systems such as semiconductors, but a new type of quasiparticle known as an angulon has been proposed to describe the rotation of an atomic or molecular impurity within a solvent. First proposed theoretically two years ago, angulons have now been shown to explain the curious behaviour of a range of different molecules rotating within liquid helium. …”
See other press releases on angulons:
Phys.org, ScienceDaily, EurekAlert, Space Daily (in English),
der Standard, Austria Presse Agentur (in German)
Europapress.es (in Spanish)
Hightech.fm, Echo Moskvy (in Russian)
Kuark.org (in Turkish)
Matfyz.cz (in Czech)
Physics Bimonthly Taiwan (in Chinese)
