Evidence map›Paper›PMID 39120356›Full record

ArticleNanomaterials (Basel, Switzerland)2024

Josephson Diode Effect in Parallel-Coupled Double-Quantum Dots Connected to Unalike Majorana Nanowires.

Yu-Mei Gao, Hu Xiao, Mou-Hua Jiang, Feng Chi, Zi-Chuan Yi, Li-Ming Liu

Abstract read
In one paragraph

Article in Nanomaterials (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Yu-Mei GaoSchool of Electronic and Information Engineering, UEST of China, Zhongshan Institute, Zhongshan 528400, China.
Hu XiaoZhongshan Zhuoman Microelectronics Co., Ltd., Zhongshan 528400, China.
Mou-Hua JiangSouth China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China.ORCID 0009-0008-9298-2449
Feng ChiSchool of Electronic and Information Engineering, UEST of China, Zhongshan Institute, Zhongshan 528400, China.
Zi-Chuan YiSchool of Electronic and Information Engineering, UEST of China, Zhongshan Institute, Zhongshan 528400, China.ORCID 0000-0001-7670-7916
Li-Ming LiuSchool of Electronic and Information Engineering, UEST of China, Zhongshan Institute, Zhongshan 528400, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We study theoretically the Josephson diode effect (JDE) when realized in a system composed of parallel-coupled double-quantum dots (DQDs) sandwiched between two semiconductor nanowires deposited on an s-wave superconductor surface. Due to the combined effects of proximity-induced superconductivity, strong Rashba spin-orbit interaction, and the Zeeman splitting inside the nanowires, a pair of Majorana bound states (MBSs) may possibly emerge at opposite ends of each nanowire. Different phase factors arising from the superconductor substrate can be generated in the coupling amplitudes between the DQDs and MBSs prepared at the left and right nanowires, and this will result in the Josephson current. We find that the critical Josephson currents in positive and negative directions are different from each other in amplitude within an oscillation period with respect to the magnetic flux penetrating through the system, a phenomenon known as the JDE. It arises from the quantum interference effect in this double-path device, and it can hardly occur in the system of one QD coupled to MBSs. Our results also show that the diode efficiency can reach up to 50%, but this depends on the overlap amplitude between the MBSs, as well as the energy levels of the DQDs adjustable by gate voltages. The present model is realizable within current nanofabrication technologies and may find practical use in the interdisciplinary field of Majorana and Josephson physics.

Indexed as

diode efficiencydouble-quantum dotsJosephson diode effectMajorana bound statesquantum interference effect

Identifiers

PMID39120356
PMCPMC11314297

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.