Geometric phase accumulation-based effects in the quantum dynamics of an   anisotropically trapped ion
  New physical effects in the dynamics of an ion confined in an anisotropic two-dimensional Paul trap are reported. The link between the occurrence of such manifestations and the accumulation of geometric phase stemming from the intrinsic or controlled lack of symmetry in the trap is brought to light. The possibility of observing in laboratory these anisotropy-based phenomena is briefly discussed. 
M. Scala, B. Militello and A. Messina