Entanglement of Two-Superconducting-Qubit System Coupled with a Fixed Capacitor

田立君; 秦立国; 张宏标

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Entanglement of Two-Superconducting-Qubit System Coupled with a Fixed Capacitor

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摘要

We study thermal entanglement in a two-superconducting-qubit system in two cases,either identical or distinct.By calculating the concurrence of system,we find that the entangled degree of the system is greatly enhanced in the case of very low temperature and Josephson energies for the identical superconducting qubits and our result is in a good agreement with the experimental data.

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《中国物理快报：英文版》 |2011年第5期|42-45|共4页
作者
田立君; 秦立国; 张宏标;
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作者单位

Department of Physics;

Shanghai University;

Shanghai 200444;

Shanghai Key Lab for Astrophysics;

Shanghai 200234;

Institute of Theoretical Physics;

Northeast Normal University;

Changchun 130024;

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原文格式 PDF
正文语种 chi
中图分类理论物理学;
关键词
identical; system; Fixed;

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Entanglement of Two-Superconducting-Qubit System Coupled with a Fixed Capacitor

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