Time-bin-encoding-based remote states generation of nitrogen-vacancy centers through noisy channels |
A schematic diagram of the single photon input–output process. (a) The NV center fixing on the exterior surface of MTR and interacting with the single photon through input–output process. (b) The effective configuration of the NV center. The transformation from state |−1⟩ to | A 2⟩ is driven resonantly by the input L-polarized single photon. The transformation from state |+1⟩ to | A 2⟩ will not happen in the present scheme due to large detuning caused by the level splitting. B 0 is an external magnetic field along the NV center symmetry axis to split |±1⟩ state. γ e is the electron gyromagnetic ratio. |