Superconducting persistent-current qubit

被引：634

作者：

Orlando, TP ^{[1
]}

Mooij, JE

Tian, L

van der Wal, CH

Levitov, LS

Lloyd, S

Mazo, JJ

机构：

[1] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA

[2] Delft Univ Technol, Dept Appl Phys, NL-2628 CJ Delft, Netherlands

[3] MIT, Dept Phys, Cambridge, MA 02139 USA

[4] MIT, Ctr Mat Sci & Engn, Cambridge, MA 02139 USA

[5] MIT, Dept Mech Engn, Cambridge, MA 02139 USA

[6] Univ Zaragoza, Dept Fis Mat Condensada, CSIC, E-50009 Zaragoza, Spain

[7] Univ Zaragoza, ICMA, CSIC, E-50009 Zaragoza, Spain

来源：

PHYSICAL REVIEW B | 1999年 / 60卷 / 22期

关键词：

D O I：

10.1103/PhysRevB.60.15398

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present the design of a superconducting qubit that has circulating currents of opposite sign as its two states. The circuit consists of three nanoscale aluminum Josephson junctions connected in a superconducting loop and controlled by magnetic fields. The advantages of this qubit are that it can be mode insensitive to background charges in the substrate, the flux in the two states: can be detected with a superconducting quantum interference device, and the states can he manipulated with magnetic fields. Coupled systems of qubits are also discussed as well as sources of decoherence. [S0163-1829(99)00746-8].

引用

页码：15398 / 15413

页数：16

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