期刊
PHYSICAL REVIEW LETTERS
卷 124, 期 13, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.124.137001
关键词
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资金
- DARPA [DP18AP900007]
- US ONR Grant [N000141712793]
- NSF DMR Grant [1836687]
- UB Center for Computational Research
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1836687] Funding Source: National Science Foundation
- U.S. Department of Defense (DOD) [N000141712793] Funding Source: U.S. Department of Defense (DOD)
Topological superconductivity supports exotic Majorana bound states (MBS) which are chargeless zero-energy emergent quasiparticles. With their non-Abelian exchange statistics and fractionalization of a single electron stored nonlocally as a spatially separated MBS, they are particularly suitable for implementing fault-tolerant topological quantum computing. While realizing MBS has focused on one-dimensional systems, the onset of topological superconductivity requires delicate parameter tuning and geometric constraints pose significant challenges for their control and demonstration of non-Abelian statistics. To overcome these challenges, building on recent experiments in planar Josephson junctions (JJs), we propose a MBS platform of X-shaped JJs. This versatile implementation reveals how external flux control of the superconducting phase difference can generate and manipulate multiple MBS pairs to probe non-Abelian statistics. The underlying topological superconductivity exists over a large parameter space, consistent with materials used in our fabrication of such X junctions, as an important step towards scalable topological quantum computing.
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