The vortex beam with orbital angular momentum ... transitions in atomic systems. The selection rules of the study were governed by the conservation of total angular momentum, which Arikawa ...

Recently, however, it has been suggested that graphene pseudospin is a real angular momentum that might manifest ... introduced by the two inequivalent atomic sites in the honeycomb lattice ...

possess properties “that make them a highly practical choice for generating currents of orbital angular momentum”. They have a helical atomic structure, giving them a natural handedness because such ...