Nuclear spin induced collapse and revival shape of Rabi oscillations of a single electron spin in diamond |
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Authors: | Hu Xin Liu Dong-Qi and Pan Xin-Yu |
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Institution: | Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; School of Physics, Nankai University, Tianjin 300071, China |
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Abstract: | A collapse and revival shape of Rabi oscillations in an electron spin of a single nitrogen-vacancy centre has been observed in diamond at room temperature. Because of hyperfine interaction between the host 14N nuclear spin and the nitrogen-vacancy centre electron spin, different orientations of the 14N nuclear spins lead to a triplet splitting of the transition between ground state (ms =0) and excited state (ms =1). The manipulation of the single electron spin of nitrogen-vacancy centre is achieved by using a combination of selective microwave excitation and optical pumping at 532 nm. Microwaves can excite three transitions equally to induce three independent nutations and the shape of Rabi oscillations is a combination of the three nutations. |
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Keywords: | nitrogen-vacancy centre single electron spin Rabi oscillations hyperfine interaction |
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