Quantum microwave-optical interface with nitrogen-vacancy centers in diamond
arXiv:1709.04852 · doi:10.1103/PhysRevA.96.032342
Abstract
We propose an efficient scheme for a coherent quantum interface between microwave and optical photons using nitrogen-vacancy (NV) centers in diamond. In this setup, an NV center ensemble is simultaneously coupled to an optical and a microwave cavity. We show that, by using the collective spin excitation modes as an intermediary, quantum states can be transferred between the microwave cavity and the optical cavity through either a double-swap scheme or a dark-state protocol. This hybrid quantum interface may provide interesting applications in single microwave photon detections or quantum information processing.
8 pages, 5 figures, accepted by PRA
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