Electrically Detected Interferometry of Majorana Fermions in a Topological Insulator
Open accessAbstract
Majorana fermions are zero-energy quasiparticles that may exist in superconducting vortices and interfaces, but their detection is problematic since they have no charge. This is an obstacle to the realization of topological quantum computation, which relies on Majorana fermions to store qubits in a way which is insensitive to decoherence. We show how a pair of neutral Majorana fermions can be converted reversibly into a charged Dirac fermion. These two types of fermions are predicted to exist on the metallic surface of a topological insulator (such as Bi2Se3). Our Dirac-Majorana fermion converter enables electrical detection of a qubit by an interferometric measurement.
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Most proposals to manipulate the topological surface states in Bi2Se3 rely on the opening of a superconducting gap by proximity to a superconductor.
“Most proposals to manipulate the topological surface states in Bi 2 Se3 rely on the opening of a superconducting gap by proximity to a superconductor.”
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Retracted
- Authors
- Akhmerov, A. R., Nilsson, J., & Beenakker, C. W. J.
- Affiliations
- Leiden University (NL)
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2009-05-28
- Volume
- 102
- Issue
- 21
- Pages
- 216404-216404
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2017003665
- Cited by
- 612
- References
- 26
- Citations by year
- 2026: 10 · 2025: 19 · 2024: 30 · 2023: 20 · 2022: 23 · 2021: 22 · 2020: 41 · 2019: 48 · 2018: 45 · 2017: 29 · 2016: 39 · 2015: 42 · 2014: 44 · 2013: 52 · 2012: 54
- FWCI
- 27.46
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Physical Review Letters (publishedVersion)
- PubMed (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- Leiden Repository (Leiden University) (submittedVersion, other-oa)
- Leiden Repository (Leiden University) (submittedVersion)
- Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
- arXiv (Cornell University)
- Funders
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Topological Materials and Phenomena
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum and electron transport phenomena
- Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Advanced Condensed Matter Physics
- Keywords
- Majorana fermions, topological insulators, Bi2Se3, topological quantum computation, superconducting vortices, surface states
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