Fast magnetic field manipulations and nonadiabatic geometric phases of nitrogen-vacancy center spin in diamond

Wen-Qi Fang, Bang-Gui Liu
2017 Journal of Physics D: Applied Physics  
Fast quantum spin manipulation is needed to design spin-based quantum logic gates and other quantum applications. Here, we construct exact evolution operator of the nitrogen-vacancy-center (NV) spin in diamond under external magnetic fields and investigate the nonadiabatic geometric phases, both cyclic and non-cyclic, in these fast-manipulated NV spin systems. It is believed that the nonadiabatic geometric phases can be measured in future experiments and these fast quantum manipulations can be
more » ... seful in designing spin-based quantum applications.
doi:10.1088/1361-6463/aa7f1a fatcat:vdvqtq3qwfclbi2sbzd7kcmavm