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

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 codin...

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Bibliographic Details
Published inChinese physics B Vol. 24; no. 9; pp. 125 - 129
Main Author 王飞 麦麦提依明·吐孙 帕肉克·帕尔哈提 艾合买提·阿不力孜
Format Journal Article
LanguageEnglish
Published 01.09.2015
Subjects
Capacitors
Charge
Charge density
Coding
Correlation
Mutual coupling
Qubits (quantum computing)
Superconductivity
关联
电荷
相互耦合
系统
超导
退相干
量子密集编码
量子比特
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ISSN1674-1056
2058-3834
1741-4199
DOI10.1088/1674-1056/24/9/090307

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Summary: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.
Bibliography: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.
superconducting charge qubit,quantum dense coding,channel capacity,intrinsic decoherence
11-5639/O4
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/24/9/090307