Realization of Microwave Quantum Circuits Using Hybrid Superconducting-Semiconducting Nanowire Josephson Elements

被引：222

作者：

de Lange, G. ^{[1
,2
]}

van Heck, B. ^{[3
]}

Bruno, A. ^{[1
,2
]}

van Woerkom, D. J. ^{[1
,2
]}

Geresdi, A. ^{[1
,2
]}

Plissard, S. R. ^{[4
]}

Bakkers, E. P. A. M. ^{[1
,2
,4
]}

Akhmerov, A. R. ^{[1
,2
]}

DiCarlo, L. ^{[1
,2
]}

机构：

[1] Delft Univ Technol, QuTech, NL-2600 GA Delft, Netherlands

[2] Delft Univ Technol, Kavli Inst Nanosci, NL-2600 GA Delft, Netherlands

[3] Leiden Univ, Inst Lorentz, NL-2300 RA Leiden, Netherlands

[4] Eindhoven Univ Technol, Dept Appl Phys, NL-5600 MB Eindhoven, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2015年 / 115卷 / 12期

关键词：

NON-ABELIAN STATISTICS; QUBIT; FLUCTUATIONS; SUPERCURRENT; INFORMATION; SIGNATURES; TRANSPORT; JUNCTIONS; FERMIONS; PARITY;

D O I：

10.1103/PhysRevLett.115.127002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the realization of quantum microwave circuits using hybrid superconductor-semiconductor Josephson elements comprised of InAs nanowires contacted by NbTiN. Capacitively shunted single elements behave as transmon circuits with electrically tunable transition frequencies. Two-element circuits also exhibit transmonlike behavior near zero applied flux but behave as flux qubits at half the flux quantum, where nonsinusoidal current-phase relations in the elements produce a double-well Josephson potential. These hybrid Josephson elements are promising for applications requiring microwave superconducting circuits operating in a magnetic field.

引用

页数：5

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