Evidence map›Paper›PMID 40164679›Full record

ArticleNature nanotechnology2025

Enhanced Majorana stability in a three-site Kitaev chain.

Alberto Bordin, Chun-Xiao Liu, Tom Dvir, Francesco Zatelli, Sebastiaan L D Ten Haaf, David van Driel, Guanzhong Wang, Nick van Loo, Yining Zhang, Jan Cornelis Wolff and 7 more

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In one paragraph

Article in Nature nanotechnology, 2025. 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

17 authors.

Alberto Bordin *QuTech and Kavli Institute of NanoScience, Delft University of Technology, Delft, The Netherlands. a.bordin@tudelft.nl.ORCID http://orcid.org/0000-0003-0632-747X
Chun-Xiao Liu *QuTech and Kavli Institute of NanoScience, Delft University of Technology, Delft, The Netherlands.ORCID http://orcid.org/0000-0002-4071-9058
Tom DvirQuTech and Kavli Institute of NanoScience, Delft University of Technology, Delft, The Netherlands.ORCID http://orcid.org/0000-0003-0966-2564
Francesco ZatelliQuTech and Kavli Institute of NanoScience, Delft University of Technology, Delft, The Netherlands.ORCID http://orcid.org/0000-0002-4250-6566
Sebastiaan L D Ten HaafQuTech and Kavli Institute of NanoScience, Delft University of Technology, Delft, The Netherlands.ORCID http://orcid.org/0009-0004-3997-474X
David van DrielQuTech and Kavli Institute of NanoScience, Delft University of Technology, Delft, The Netherlands.
Guanzhong WangQuTech and Kavli Institute of NanoScience, Delft University of Technology, Delft, The Netherlands.ORCID http://orcid.org/0000-0002-3260-3055
Nick van LooQuTech and Kavli Institute of NanoScience, Delft University of Technology, Delft, The Netherlands.ORCID http://orcid.org/0000-0001-7461-5428
Yining ZhangQuTech and Kavli Institute of NanoScience, Delft University of Technology, Delft, The Netherlands.
Jan Cornelis WolffQuTech and Kavli Institute of NanoScience, Delft University of Technology, Delft, The Netherlands.
Thomas Van CaekenbergheQuTech and Kavli Institute of NanoScience, Delft University of Technology, Delft, The Netherlands.ORCID http://orcid.org/0000-0002-4278-0952
Ghada BadawyDepartment of Applied Physics, Eindhoven University of Technology, Eindhoven, The Netherlands.
Sasa GazibegovicDepartment of Applied Physics, Eindhoven University of Technology, Eindhoven, The Netherlands.
Erik P A M BakkersDepartment of Applied Physics, Eindhoven University of Technology, Eindhoven, The Netherlands.ORCID http://orcid.org/0000-0002-8264-6862
Michael WimmerQuTech and Kavli Institute of NanoScience, Delft University of Technology, Delft, The Netherlands.ORCID http://orcid.org/0000-0001-6654-2310
Leo P KouwenhovenQuTech and Kavli Institute of NanoScience, Delft University of Technology, Delft, The Netherlands.ORCID http://orcid.org/0000-0002-7046-8181
Grzegorz P MazurQuTech and Kavli Institute of NanoScience, Delft University of Technology, Delft, The Netherlands. greg.mazur@materials.ox.ac.uk.ORCID http://orcid.org/0000-0002-7611-8115

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Majorana zero modes are non-Abelian quasiparticles predicted to emerge at the edges of topological superconductors. A one-dimensional topological superconductor can be realized with the Kitaev model-a chain of spinless fermions coupled via p-wave superconductivity and electron hopping-which becomes topological in the long-chain limit. Here we realize a three-site Kitaev chain using semiconducting quantum dots coupled by superconducting segments in a hybrid InSb/Al nanowire. We investigate the robustness of Majorana zero modes under varying coupling strengths and electrochemical potentials, comparing two- and three-site chains realized within the same device. We observe that extending the chain to three sites enhances the stability of the zero-energy modes, especially against variations in the coupling strengths. This experiment lacks superconducting phase control, yet numerical conductance simulations with phase averaging align well with our observations. Our results demonstrate the scalability of quantum-dot-based Kitaev chains and its benefits for Majorana stability.

Identifiers

PMID40164679
PMCPMC12181078

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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.