Two-mode squeezing of distant nitrogen-vacancy-center ensembles by manipulating the reservoir
Two-mode squeezing of distant nitrogen-vacancy-center ensembles by manipulating the reservoir
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DOI：
10.1103/physreva.85.022324
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发表时间：
2012-02
影响因子：
2.9
通讯作者：
Wanli Yang;Z. Yin;Qiong Chen;C. Y. Chen;M. Feng
中科院分区：
文献类型：
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作者：
Wanli Yang;Z. Yin;Qiong Chen;C. Y. Chen;M. Feng
我们提出了一个方案，工程师的有效玻色子模式的双模压缩态实现的集体激发的两个遥远的氮空位中心系综（NVE）耦合到分离的传输线谐振器（TLR），这是互连的电流偏置约瑟夫森结超导量子比特。通过利用工程NVE-TLR磁耦合与NVE的基态子能级之间的拉曼跃迁，我们可以通过调谐外部驱动场来操纵人工水库。TLR衰变诱导了一个人工库，它可以驱动系统到达所需的纠缠压缩态。我们的想法提供了一种可扩展的方式，以基于NVE的连续变量量子信息处理，这是接近可以实现与目前可用的技术。
We present a scheme to engineer a two-mode squeezed state of effective bosonic modes realized by collective excitations of two distant nitrogen-vacancy-center ensembles (NVEs) coupled to separated transmission line resonators (TLRs), which are interconnected by a current-biased Josephson-junction superconducting qubit. By making use of the engineered NVE-TLR magnetic coupling with Raman transition between the ground sublevels of the NVEs, we may manipulate the artificial reservoir by tuning the external driving fields. The TLR decay induces an artificial reservoir, which can drive the system to the desired entangled squeezed states. Our idea provides a scalable way to a NVE-based continuous-variable quantum-information processing, which is close to being achievable with currently available technology.