\begin{document}$\Lambda $\end{document}-, and V-type mode. Current studies show that the solitons cannot be stored in V-type three-level ultra-cold atomic EIT media but they can be stored in ladder- and\begin{document}$\Lambda $\end{document}-type three-level ultra-cold atomic EIT media. It is mainly because the atoms of the V-type system initially are in a excited state, while the atoms of the ladder- and \begin{document}$\Lambda $\end{document}-type systems initially are in the ground state. For the practical applications, it is a large challenge to control accurately the solitons stored in the ultra-cold atomic EIT media due to their ultralow temperature and rarefaction. Fortunately, with the maturity of semiconductor quantum technology, quantum dots have extensively application prospect in quantum information processing and transmission. However, the solitons cannot be stored in V-type three level InAs/GaAs quantum dot EIT media either, while it can be stored in ladder-type system and \begin{document}$\Lambda $\end{document}-type system.Therefore, herein we propose a V-type three-level nitrogen-vacancy (NV) center EIT model in which a weakprobe field and a strong control field are coupled to different energy levels of NV center in diamond. Subsequently, the linear and nonlinear properties of system are studied by using semiclassical theory combined with multi-scale method. It is shown that when control field is turned on, the linear absorption curve of the system presents an EIT window. And the width of the EIT window increases with the strength of magnetic induction of the control field increasing. In the nonlinear case, the solitons formed can stably propagate over a long distance. Interestingly, the solitons can be stored and retrieved by switching off and on the magnetic field of control field. Moreover, the amplitude of the stored solitons can be modulated by the magnetic induction strength of control field. This result indicates that solitons as information carriers in quantum information processing and transmission of NV center can greatly improve the fidelity of information processing."> - 必威体育下载

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Citation:

    Tan Cong, Wang Deng-Long, Dong Yao-Yong, Ding Jian-Wen
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    • Abstract views:858
    • PDF Downloads:47
    • Cited By:0
    Publishing process
    • Received Date:23 December 2023
    • Accepted Date:21 March 2024
    • Available Online:30 March 2024
    • Published Online:20 May 2024

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