Effects of intrinsic decoherence on various correlations and quantum dense coding in a two superconducting charge qubit system

被引：5
作者：
Wang Fei [1 ]
Maimaitiyiming-Tusun [1 ]
Parouke-Paerhati [1 ]
Ahmad-Abliz [1 ]
机构：
[1] Xinjiang Normal Univ, Sch Phys & Elect Engn, Urumqi 830054, Peoples R China
来源：
CHINESE PHYSICS B | 2015年 / 24卷 / 09期
关键词：
superconducting charge qubit; quantum dense coding; channel capacity; intrinsic decoherence; ENTANGLEMENT; STATE;
D O I：
10.1088/1674-1056/24/9/090307
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The influence of intrinsic decoherence on various correlations and dense coding in a model which consists of two identical superconducting charge qubits coupled by a fixed capacitor is investigated. The results show that, despite the intrinsic decoherence, the correlations as well as the dense coding channel capacity can be effectively increased via the combination of system parameters, i.e., the mutual coupling energy between the two charge qubits is larger than the Josephson energy of the qubit. The bigger the difference between them is, the better the effect is.
引用
收藏
页数：5
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