Implementation of a combined charge-phase quantum bit in a superconducting circuit

被引：57
作者：
Cottet, A [1 ]
Vion, D [1 ]
Aassime, A [1 ]
Joyez, P [1 ]
Esteve, D [1 ]
Devoret, MH [1 ]
机构：
[1] CEA Saclay, Serv Phys Etat Condense, Quantron Grp, F-91191 Gif Sur Yvette, France
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2002年 / 367卷 / 1-4期
关键词：
qubits; quantum computing; charging effects; quantum coherence;
D O I：
10.1016/S0921-4534(01)01014-0
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We discuss a cubit circuit based on the single Cooper-pair transistor (which consists of two ultrasmall Josephson junctions in series) connected in parallel with a large Josephson junction. The switching of this junction out of its zero-voltage state is used to readout the qubit, We report measurements of the discriminating power of the readout process, and we discuss its back-action on the qubit. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：197 / 203
页数：7
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