Investigation of decoherence of superconducting charge qubit entangled with the environment

被引：1
|
作者：
Ji, Ying-Hua [1 ,2 ]
机构：
[1] Jiangxi Normal Univ, Dept Phys, Nanchang 330022, Jiangxi, Peoples R China
[2] Key Lab Optoelect & Telecommun Jiangxi, Nanchang 330022, Jiangxi, Peoples R China
来源：
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2008年 / 47卷 / 09期
关键词：
charge qubit; decoherence; the Born-Markov approximation;
D O I：
10.1007/s10773-008-9670-9
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In the Born-Markov approximation, a method that calculates the energy relaxation time T-1 and the decoherence time T-2 of superconducting qubits is given by solving the set of Bloch-Redfield equations and considering the results of decoherence of a superconducting charge qubit. Compared to the spin-boson model, it not only contains the decoherence being caused by the dissipative environment, but also includes the decoherence being generated by the dissipative elements in a superconducting electronic circuit. Hence, it is good for studying the decoherence of superconducting qubits comprehensively.
引用
收藏
页码：2363 / 2371
页数：9
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