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Universal limit of critical-current fluctuations in mesoscopic Josephson junctions
Abstract
The sample-to-sample fluctuations in the critical current of a disordered Josesphson junction are analyzed by means of a transmission-matrix formalism. If the junction becomes small compared to the superconducting coherence length, the fluctuations at T=0 become of order e${\mathrm{\ensuremath{\Delta}}}_{0}$/\ensuremath{\Elzxh}, dependent only on the energy gap ${\mathrm{\ensuremath{\Delta}}}_{0}$ of the bulk superconductors and independent of junction length or mean free path. This universal limit is reached in weak links formed from point contacts or microbridges.
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Citations
Cites
Tunneling Between Superconductors
Ambegaokar, V., & Baratoff, A. (1963) · Physical Review Letters · doi:10.1103/physrevlett.10.486 · Cited by 2,195
Universal Conductance Fluctuations in Metals
Lee, P. A., & Stone, A. D. (1985) · Physical Review Letters · doi:10.1103/physrevlett.55.1622 · Cited by 1,369
Cited by
Lutchyn, R. M., Sau, J. D., & Das Sarma, S. (2010) · Physical Review Letters · doi:10.1103/physrevlett.105.077001 · Cited by 3,435
Decoherence in Josephson Phase Qubits from Junction Resonators
Simmonds, R., Lang, K., Hite, D., Nam, S., Pappas, D., & Martinis, J. (2004) · Physical Review Letters · doi:10.1103/physrevlett.93.077003 · Cited by 451
Coherent suppression of electromagnetic dissipation due to superconducting quasiparticles
Pop, I. M., Geerlings, K., Catelani, G., Schoelkopf, R. J., Glazman, L. I., & Devoret, M. H. (2014) · Nature · doi:10.1038/nature13017 · Cited by 332
de Lange, G., van Heck, B., Bruno, A., van Woerkom, D. J., Geresdi, A., Plissard, S. R., Bakkers, E. P. A. M., Akhmerov, A. R., & DiCarlo, L. (2015) · Physical Review Letters · doi:10.1103/physrevlett.115.127002 · Cited by 270
Metadata
- Authors
- Beenakker, C. W. J.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1991-12-30
- Volume
- 67
- Issue
- 27
- Pages
- 3836-3839
- ISSN
- 0031-9007 (ISSN-L)
- OpenAlex
- W2039150838
- Cited by
- 650
- References
- 2
- FWCI
- 8.22
- Type
- journal article
- Language
- en
- Open access
- closed
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- Beenakker, C. W. J. (1991). Universal limit of critical-current fluctuations in mesoscopic Josephson junctions. Physical Review Letters. https://doi.org/10.1103/physrevlett.67.3836
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