期刊
PHYSICAL REVIEW LETTERS
卷 124, 期 22, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.124.226801
关键词
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资金
- Microsoft Corporation
- Danish National Research Foundation
- Villum Foundation
- European Research Commission [804273]
- European Research Council (ERC) [804273] Funding Source: European Research Council (ERC)
We demonstrate concomitant measurement of phase-dependent critical current and Andreev bound state spectrum in a highly transmissive InAs Josephson junction embedded in a dc superconducting quantum interference device (SQUID). Tunneling spectroscopy reveals Andreev bound states with near unity transmission probability. A nonsinusoidal current-phase relation is derived from the Andreev spectrum, showing excellent agreement with the one extracted from the SQUID critical current. Both measurements are reconciled within a short junction model where multiple Andreev bound states, with various transmission probabilities, contribute to the entire supercurrent flowing in the junction.
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