Josephson quantum bits in the flux regime

被引：11
作者：
Makhlin, Y
Schön, G
Shnirman, A
机构：
[1] Univ Karlsruhe, Inst Theoret Festkorperphys, D-76128 Karlsruhe, Germany
[2] LD Landau Theoret Phys Inst, Moscow 117940, Russia
[3] Forschungszentrum Karlsruhe, Inst Nanotechnol, D-76021 Karlsruhe, Germany
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2002年 / 368卷 / 1-4期
关键词：
Josephson qubit; quantum measurement; magnetic flux; dephasing time;
D O I：
10.1016/S0921-4534(01)01181-9
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Josephson junction circuits can serve as building blocks of quantum computers. Here we discuss designs, which employ magnetic flux degrees of freedom to process quantum information. Elementary single- and two-qubit logic gates can be performed by voltage or current pulses. The coherence time should be long enough to allow a series of such operations. We also discuss the read-out. i.e., a quantum measurement process, which is accomplished by coupling a dc-SQUID to the qubit. (C) 2001 Etsevier Science B.V. All rights reserved.
引用
收藏
页码：276 / 283
页数：8
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