Josephson charge-phase qubit with radio frequency readout: Coupling and decoherence

被引：16
|
作者：
Zorin, AB [1 ]
机构：
[1] Phys Tech Bundesanstalt, D-38116 Braunschweig, Germany
[2] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow 119992, Russia
来源：
JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2004年 / 98卷 / 06期
关键词：
D O I：
10.1134/1.1777638
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The Josephson qubit based on a superconducting single charge transistor inserted in a low-inductance superconducting loop is considered. The loop is inductively coupled to a radio-frequency driven tank circuit enabling the readout of the qubit states by measuring the effective Josephson inductance of the transistor. The effect of qubit dephasing and relaxation due to electric and magnetic control lines, as well as the measuring system, is evaluated. Recommendations for qubit operation with minimum decoherence are given. (C) 2004 MAIK "Nauka / Interperiodica".
引用
收藏
页码：1250 / 1261
页数：12
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