Quantum behavior of a flux qubit coupled to a resonator

被引：35
|
作者：
Omelyanchouk, A. N. [1 ]
Shevchenko, S. N. [1 ,2 ]
Greenberg, Ya. S. [2 ,3 ]
Astafiev, O. [4 ]
Il'ichev, E. [2 ]
机构：
[1] Natl Acad Sci Ukraine, B Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkov, Ukraine
[2] Inst Photon Technol, D-07702 Jena, Germany
[3] Novosibirsk State Tech Univ, Novosibirsk 630092, Russia
[4] NEC Nano Elect Res Labs, Tsukuba, Ibaraki 3058501, Japan
来源：
LOW TEMPERATURE PHYSICS | 2010年 / 36卷 / 10-11期
基金：
俄罗斯基础研究基金会;
关键词：
OSCILLATIONS;
D O I：
10.1063/1.3515520
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A detailed theory for a system of a superconducting qubit coupled to a transmission line resonator is presented. We describe the system by solving analytically and numerically the master equation for the density matrix, which includes a dissipative Lindblad term. We calculate the transmission coefficient, which provides a way to probe the dressed states of a qubit. The theoretical results are related to experiments with intermediate coupling between a qubit and a resonator when the coupling energy is of the same order as the qubit relaxation rate. (C) 2010 American Institute of Physics. [doi:10.1063/1.3515520]
引用
收藏
页码：893 / 901
页数：9
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