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

doi:10.1088/1674-1056/24/9/090307

中国物理B ›› 2015, Vol. 24 ›› Issue (9): 90307-090307.doi: 10.1088/1674-1056/24/9/090307

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

王飞, 麦麦提依明·吐孙, 帕肉克·帕尔哈提, 艾合买提·阿不力孜

School of Physics and Electronic Engineering, Xinjiang Normal University, Urumchi 830054, China

收稿日期:2015-03-13 修回日期:2015-05-03 出版日期:2015-09-05 发布日期:2015-09-05
基金资助:
Project supported by the Project to Develop Outstanding Young Scientific Talents of China (Grant No. 2013711019), the Natural Science Foundation of Xinjiang Province, China (Grant No. 2012211A052), the Foundation for Key Program of Ministry of Education of China (Grant No. 212193), and the Innovative Foundation for Graduate Students Granted by the Key Subjects of Theoretical Physics of Xinjiang Province, China (Grant No. LLWLL201301).

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

Wang Fei (王飞), Maimaitiyiming-Tusun (麦麦提依明·吐孙), Parouke-Paerhati (帕肉克·帕尔哈提), Ahmad-Abliz (艾合买提·阿不力孜)

School of Physics and Electronic Engineering, Xinjiang Normal University, Urumchi 830054, China

Received:2015-03-13 Revised:2015-05-03 Online:2015-09-05 Published:2015-09-05
Contact: Ahmad-Abliz E-mail:aahmad@126.com
Supported by:
Project supported by the Project to Develop Outstanding Young Scientific Talents of China (Grant No. 2013711019), the Natural Science Foundation of Xinjiang Province, China (Grant No. 2012211A052), the Foundation for Key Program of Ministry of Education of China (Grant No. 212193), and the Innovative Foundation for Graduate Students Granted by the Key Subjects of Theoretical Physics of Xinjiang Province, China (Grant No. LLWLL201301).

摘要/Abstract

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.

关键词: superconducting charge qubit, quantum dense coding, channel capacity, intrinsic decoherence

Abstract:

Key words: superconducting charge qubit, quantum dense coding, channel capacity, intrinsic decoherence

中图分类号: (Quantum communication)

03.67.Hk

05.30.-d (Quantum statistical mechanics) 74.50.+r (Tunneling phenomena; Josephson effects)

王飞, 麦麦提依明·吐孙, 帕肉克·帕尔哈提, 艾合买提·阿不力孜. Effects of intrinsic decoherence on various correlations and quantum dense coding in a two superconducting charge qubit system[J]. 中国物理B, 2015, 24(9): 90307-090307.

Wang Fei (王飞), Maimaitiyiming-Tusun (麦麦提依明·吐孙), Parouke-Paerhati (帕肉克·帕尔哈提), Ahmad-Abliz (艾合买提·阿不力孜). Effects of intrinsic decoherence on various correlations and quantum dense coding in a two superconducting charge qubit system[J]. Chin. Phys. B, 2015, 24(9): 90307-090307.

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

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

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