Cluster state entanglement generation and concentration on nitrogen-vacancy centers in decoherence-free subspace

被引：23
|
作者：
Cao, Cong [1 ,2 ]
Wang, Tie-Jun [1 ,2 ]
Zhang, Ru [1 ,2 ]
Wang, Chuan [1 ,2 ]
机构：
[1] Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China
[2] Beijing Univ Posts & Telecommun, Sch Sci, Beijing 100876, Peoples R China
来源：
LASER PHYSICS LETTERS | 2015年 / 12卷 / 03期
基金：
中国国家自然科学基金;
关键词：
entanglement generation; entanglement concentration; cluster state; nitrogen-vacancy center; decoherence-free subspace; NUCLEAR-SPIN QUBITS; QUANTUM ENTANGLEMENT; COUPLED ELECTRON; SINGLE SPINS; PHOTON; PURIFICATION; MICROCAVITY; COHERENCE; GATE;
D O I：
10.1088/1612-2011/12/3/036001
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Exploiting the composite system in which two nitrogen-vacancy centers coupled to a microtoroid resonator, we proposed the cluster state entanglement generation and concentration schemes on nitrogen-vacancy centers in decoherence-free subspace. The proposed system is well suited for the systematic preparation of cluster states in one-way quantum computation due to the controllability and scalability. Accompanied with the optimal entanglement concentration protocol for the logic-qubit expanded cluster state, one can efficiently preserve the maximal entanglement. We discussed the experimental feasibility of our schemes by considering the currently available techniques, and believe that the schemes may be useful in further solid-state quantum information processing.
引用
收藏
页数：7
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