Quantum Zeno dynamics induced atomic entanglement in a hybrid atom-cavity-fiber system

Quantum Zeno dynamics induced atomic entanglement in a hybrid atom-cavity-fiber system
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量子芝诺动力学在混合原子-腔-光纤系统中诱导原子纠缠

DOI:
10.1088/1612-202x/abac14
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发表时间:
2020-08
影响因子:
1.7
通讯作者:
Xiong Wei
Xiong Wei
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
Chen Jiaojiao;Fang Baolong;Xiong Wei

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量子纠缠是量子信息科学中重要的量子资源。本文提出了一种在原子-腔-光纤混合系统中制备原子量子纠缠的方法。利用量子芝诺动力学方法,系统演化态总是被分裂成一系列由暗态和亮态组成的芝诺不变子空间。通过选择系统的初始状态,忽略所有亮态,只保留暗态,建立有效哈密顿量。通过调节系统参数,可以一步实现两原子的多维纠缠、两原子的Bell态和三原子的GHZ态。我们的提议提供了一种利用暗态进行量子信息处理的方法。
Quantum entanglement is important quanum resources in quantum information sicence. Here we propose an approach to preparing atomic quantum entanglement in a hybrid atom-cavity-fiber system. Using quantum Zeno dynamics method, the system evolution states are always split into a series of Zeno invariant subspaces consisting of dark and bright states. By choosing the initial state of the system, the bright states are all neglected and only dark states are kept to build the effective Hamiltonian. By tuning the system parameters, two-atom multiple-dimensional entanglement, two-atom Bell state, and three-atom GHZ state can be realized by one step. Our proposal provides a way to perform quantum information processing with dark states.
DOI: 10.1103/physreva.65.012108
发表时间: 2001-01
期刊: Physical Review A
影响因子: 2.9
作者:
P. Facchi;S. Pascazio;A. Scardicchio;L. Schulman
通讯作者: P. Facchi;S. Pascazio;A. Scardicchio;L. Schulman
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