Entanglement concentration and purification of two-mode squeezed microwave photons in circuit QED

被引：10
作者：
Zhang, Hao [1 ]
Alsaedi, Ahmed [2 ]
Hayat, Tasawar [2 ,3 ]
Deng, Fu-Guo [1 ,2 ]
机构：
[1] Beijing Normal Univ, Dept Phys, Appl Opt Beijing Area Major Lab, Beijing 100875, Peoples R China
[2] King Abdulaziz Univ, Dept Math, NAAM Res Grp, Jeddah 21589, Saudi Arabia
[3] Quaid I Azam Univ, Dept Math, Islamabad 44000, Pakistan
来源：
ANNALS OF PHYSICS | 2018年 / 391卷
基金：
中国国家自然科学基金;
关键词：
Entanglement concentration; Entanglement purification; Two-mode squeezed microwave photons; Quantum nondemolition measurement; Circuit quantum electrodynamics; QUANTUM ERROR-CORRECTION; DISTILLATION; HYPERENTANGLEMENT; COMMUNICATION; TELEPORTATION; CRYPTOGRAPHY; STATE; HYPERCONCENTRATION; INFORMATION; SYSTEMS;
D O I：
10.1016/j.aop.2018.02.007
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present a theoretical proposal for a physical implementation of entanglement concentration and purification protocols for two mode squeezed microwave photons in circuit quantum electrodynamics (QED). First, we give the description of the cross-Kerr effect induced between two resonators in circuit QED. Then we use the cross-Kerr media to design the effective quantum nondemolition (QND) measurement on microwave-photon number. By using the QND measurement, the parties in quantum communication can accomplish the entanglement concentration and purification of nonlocal two-mode squeezed microwave photons. We discuss the feasibility of our schemes by giving the detailed parameters which can be realized with current experimental technology. Our work can improve some practical applications in continuous-variable microwave-based quantum information processing. (C) 2018 Elsevier Inc. All rights reserved.
引用
收藏
页码：112 / 119
页数：8
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