Single spin-qubit rotators based on nanojunctions: A semiclassical path integral approach

The proposed devices, with Π and T geometry, can be analyzed within the scope both of spin filtering and spin rotation. In fact some devices action results in a transformation of the qubit state carried by the spin, i.e. act as one-qubit spintronic quantum gates whose properties can be varied by tuning the strength of the SOI or by changing the geometrical and physical parameters in the experimentally feasible range.