Generation and stabilization of entangled coherent states for the vibrational modes of a trapped ion

Generation and stabilization of entangled coherent states for the vibrational modes of a trapped ion
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捕获离子振动模式的纠缠相干态的生成和稳定

DOI:
10.1103/physreva.98.032311
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发表时间:
2018-09
期刊:
影响因子:
2.9
通讯作者:
Shi-Biao Zheng
Shi-Biao Zheng
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Zhi-Rong Zhong;Xin-Jie Huang;Zhen-Biao Yang;Li-Tuo Shen;Shi-Biao Zheng

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提出了一种制备二维各向异性阱中离子运动纠缠相干态的方案。在该方案中,离子被四束激光束沿着离子陷阱平面的不同方向驱动,导致载流子激发以及内部和外部自由度之间的耦合。当振动模的总量子数初始具有确定的宇称时,幺正动力学和自发辐射之间的竞争将迫使系统演化到稳态,此时振动模处于双模猫态。我们证明了该方法可以推广到实现三维各向异性阱中离子三个振动模的纠缠相干态。
We propose a scheme for preparation of entangled coherent states for the motion of an ion in a two-dimensional anisotropic trap. In the scheme, the ion is driven by four laser beams along different directions in the ion trap plane, resulting in carrier excitation and couplings between the internal and external degrees of freedom. When the total quantum number of the vibrational modes initially has a definite parity, the competition between the unitary dynamics and spontaneous emission will force the system to evolve to a steady state, where the vibrational modes are in a two-mode cat state. We show that the method can be extended to realization of entangled coherent states for three vibrational modes of an ion in a three-dimensional anisotropic trap.
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