Linewidth of the Radiation Emitted by a Josephson Point Contact
- 15 September 1971
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 19 (6) , 195-197
- https://doi.org/10.1063/1.1653880
Abstract
The emission linewidth of a Nb–Nb Josephson point contact is measured vs dc current and compared with the theoretical predictions of Stephen and Scalapino. The good agreement between experimental results and theory even for high junction currents, the pair current being generally much larger than the quasiparticle current, indicates that Stephen's theory gives a fair picture of the pair‐current noise properties in point‐contact junctions.Keywords
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