Physicists have demonstrated size quantization of charge carriers, i.e. quantized conductance in nanoscale samples of graphene.

We discuss a framework for strict deformation quantization (in the sense of Rieffel) based on a GNS-type construction. These methods are applied then to prove that the quantum SU (N) groups produce a ...

We apply Dirac's method of quantization in the presence of a constraint to the hydrogen atom described by the R⁴ coordinates of Kustaanheimo and Stiefel. We show that the energy levels and their ...