High-fidelity quantum memory using nitrogen-vacancy center ensemble for hybrid quantum computation

被引：74
|
作者：
Yang, W. L. [1 ,2 ]
Yin, Z. Q. [3 ]
Hu, Y. [4 ]
Feng, M. [1 ,2 ]
Du, J. F. [5 ,6 ]
机构：
[1] Chinese Acad Sci, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China
[2] Wuhan Natl Lab Optoelect, Wuhan 430071, Peoples R China
[3] Univ Sci & Technol China, Chinese Acad Sci, Key Lab Quantum Informat, Hefei 230026, Peoples R China
[4] Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China
[5] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China
[6] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China
来源：
PHYSICAL REVIEW A | 2011年 / 84卷 / 01期
关键词：
JOSEPHSON-JUNCTION; NUCLEAR-SPIN; READOUT; DEVICES;
D O I：
10.1103/PhysRevA.84.010301
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study a hybrid quantum computing system using a nitrogen-vacancy center ensemble (NVE) as quantum memory, a current-biased Josephson junction (CBJJ) superconducting qubit fabricated in a transmission line resonator (TLR) as the quantum computing processor, and the microwave photons in TLR as the quantum data bus. The storage process is seriously treated by considering all kinds of decoherence mechanisms. Such a hybrid quantum device can also be used to create multiqubit W states of NVEs through a common CBJJ. The experimental feasibility is achieved using currently available technology.
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页数：4
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