Josephson junctions in double nanowires bridged by in-situ deposited superconductors

被引：14

作者：

Vekris, Alexandros ^{[1
,2
]}

Saldana, Juan Carlos Estrada ^{[1
]}

Kanne, Thomas ^{[1
]}

Marnauza, Mikelis ^{[1
]}

Olsteins, Dags ^{[1
]}

Fan, Furong ^{[3
,4
]}

Li, Xiaobo ^{[3
,4
]}

Hvid-Olsen, Thor ^{[1
]}

Qiu, Xiaohui ^{[5
,6
]}

Xu, Hongqi ^{[3
,4
,7
]}

Nygard, Jesper ^{[1
]}

Grove-Rasmussen, Kasper ^{[1
]}

机构：

[1] Univ Copenhagen, Ctr Quantum Devices, Niels Bohr Inst, DK-2100 Copenhagen, Denmark

[2] Univ Chinese Acad Sci, Sino Danish Ctr Educ & Res SDC SDC Bldg, Beijing 101408, Peoples R China

[3] Peking Univ, Key Lab Phys & Chem Nanodevices, Beijing Key Lab Quantum Devices, Beijing 100871, Peoples R China

[4] Peking Univ, Dept Elect, Beijing 100871, Peoples R China

[5] Natl Ctr Nanosci & Technol, CAS Key Lab Standardizat & Measurement Nanotechno, Beijing 100190, Peoples R China

[6] Natl Ctr Nanosci & Technol, CAS Ctr Excellence Nanosci, Beijing 100190, Peoples R China

[7] Beijing Acad Quantum Informat Sci, Beijing 100193, Peoples R China

来源：

PHYSICAL REVIEW RESEARCH | 2021年 / 3卷 / 03期

基金：

中国国家自然科学基金; 新加坡国家研究基金会;

关键词：

BOUND-STATES; QUANTUM; TRANSPORT;

D O I：

10.1103/PhysRevResearch.3.033240

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We characterize parallel double quantum dot Josephson junctions based on closely spaced double nanowires bridged by in-situ deposited superconductors. The parallel double dot behavior occurs despite the proximity of the two nanowires and the potential risk of nanowire clamping during growth. By tuning the charge filling and lead couplings, we map out the parallel double quantum dot Yu-Shiba-Rusinov phase diagram. Our quasi-independent two-wire hybrids show promise for the realization of exotic topological phases.

引用

页数：9

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