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Full-Text Articles in Condensed Matter Physics
Nv Center Detection Of Electric Fields And Low-Intensity Light, Nicholas Harmon, Michael Flatte
Nv Center Detection Of Electric Fields And Low-Intensity Light, Nicholas Harmon, Michael Flatte
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Nitrogen vacancy (NV) center spins in diamond are attractive candidates for quantum information processing and sensitive, nanoscale magnetometers due to their long spin coherence times under ambient conditions [1]. The ground state of the NV spin is also sensitive to electric fields [2]. We present a theory of quantum detection using positive operator valued measurements (POVMs) wherein the presence of an electric field is determined by spin-dependent fluorescence of an NV center. The predicted sensitivity to small electric fields can also be used for photon detection. Photons incident upon a chromophore near the diamond interface may induce a charge polarization …