Tunneling Between Superconductors
Abstract
Josephson's calculations showed that for two superconductors separated by an oxide there may exist an osciliating supercurrent of frequency 2e V/h (V is applied voltage) and a possible d-c supercurrent at zero voltage. The calculations are reproduced by the method of the thermodynamic Green's function that allows generalization to superconductors with strong electron-phonon coupling. A simple prediction for the temperature dependence of the d-c supercurrent is shown to follow from the theory. (D.C.W.)
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The Ambegaokar-Baratoff relation describes the link between a transmon qubit's frequency and the normal state resistance of the junction.
“The Ambegaokar–Baratoff relation51 for the critical current of a JJ describes the link between a transmon qubit’s frequency15 and the normal state resistance of the junction (), .”
From Advanced CMOS manufacturing of superconducting qubits on 300 mm wafers (2024) · cites this paper as [51]
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Compact SQUID realized in a double-layer graphene heterostructure
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- Authors
- Ambegaokar, V., & Baratoff, A.
- Affiliations
- Cornell University (US)
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1963-06-01
- Volume
- 10
- Issue
- 11
- Pages
- 486-489
- ISSN
- 0031-9007 (ISSN-L)
- OpenAlex
- W2074689366
- Cited by
- 2,195
- References
- 0
- Citations by year
- 2026: 47 · 2025: 55 · 2024: 51 · 2023: 46 · 2022: 40 · 2021: 69 · 2020: 50 · 2019: 41 · 2018: 28 · 2017: 25 · 2016: 27 · 2015: 32 · 2014: 34 · 2013: 32 · 2012: 46
- FWCI
- 3.79
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Physical Review Letters (publishedVersion)
- Topics
- Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Physics of Superconductivity and Magnetism
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Surface and Thin Film Phenomena
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum and electron transport phenomena
- Keywords
- Josephson effect, superconducting tunnel junctions, thermodynamic Green's functions, electron-phonon coupling, oxide barrier
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