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Dynamics of quantum correlation between separated nitrogen-vacancy centers embedded in plasmonic waveguide

机译:等离子体波导中分离的氮空位中心之间的量子相关动力学

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摘要

We investigate the dynamics of quantum correlation between two separated nitrogen vacancy centers (NVCs) placed near a one-dimensional plasmonic waveguide. As a common medium of the radiation field of NVCs propagating, the plasmonic waveguide can dynamically induce quantum correlation between the two NVCs. It is interesting to find that such dynamically induced quantum correlation can be preserved in the long-time steady state by locally applying individual driving on the two NVCs. In particular, we also show that a large degree of quantum correlation can be established by this scheme even when the distance between the NVCs is much larger than their operating wavelength. This feature may open new perspectives for devising active decoherence-immune solid-state optical devices and long-distance NVC-based quantum networks in the context of plasmonic quantum electrodynamics.
机译:我们调查一维等离激元波导附近的两个分离的氮空位中心(NVC)之间的量子相关动力学。作为NVC传播的辐射场的公共介质,等离子体波导可以动态地诱导两个NVC之间的量子相关性。有趣的是,通过在两个NVC上局部应用单独的驱动,可以在长时间的稳态下保持这种动态诱发的量子相关性。特别是,我们还表明,即使NVC之间的距离远大于其工作波长,也可以通过这种方案建立很大程度的量子相关性。该特征可以为在等离激元量子电动力学的背景下设计有源抗相干免疫固态光学设备和基于NVC的长距离量子网络开辟新的前景。

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