Abstract
The problem of coherent flux tunnelling across a Josephson weak link enclosed by a thick superconducting (‘SQUID‘) ring in terms of quantum electrodynamics is considered. We show that for a low effective noise temperature (≃few K) in the SQUID ring and with the weak link capacitance ≲3 × 10−15, such a process should be observable. Experimental evidence is given to justify this claim.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Jackel, L. D. & Buhrman, R. A. J. Low Temp. Phys. 19, 201 (1975).
Grassie, A. D. C. The Superconducting State, 123 (Sussex University Press, 1975).
Tinkham, M. Introduction to Superconductivity Ch. 4 (McGraw-Hill, New York, 1975).
Tinkham, M. Introduction to Superconductivity, 195–196 (McGraw-Hill, New York, 1975).
Grassie, A. D. C. The Superconducting State, 121 (Sussex University Press, 1975).
Widom, A. J. Low Temp. Phys. 37, 449 (1979).
Widom, A. Phys. Rev. B 21, 5166 (1980).
Rieger, T. J., Scalapino, D. J. & Mercereau, J. E. Phys. Rev. B 6, 1734 (1972).
Widom, A. & Clark, T. D. Nuovo Cimento Lett. 28, 186 (1980).
Blatt, J. M. Prog. theor. Phys. 26, 761 (1961).
Widom, A., Clark, T. D. & Megaloudis, G. Phys. Lett. 76 A 163 (1980).
McCumber, D. E. J. appl. Phys. 39, 3113 (1968).
Kurkijärvi, J. Phys. Rev. B 6, 832 (1972).
Kurkijärvi, J. J. appl. Phys. 44, 3729 (1973).
Long, A. P., Clark, T. D. & Prance, R. J. Rev. scient. Instrum. 51, 8 (1980).
Zimmerman, J. E. & Frederick, N. V. Appl. Phys. Lett. 19, 16 (1971).
Buhrman, R. A. et al. J. appl. Phys. 45, 4045 (1974).
Lounasmaa, O. V. Experimental Principles and Methods Below 1 K, 156–158 (Academic, New York, 1974).
Clark, T. D. & Jackel, L. D. Rev. scient. Instrum. 46, 1249 (1975).
Simmonds, M. B. & Parker, W. M. J. appl. Phys. 42, 38 (1971).
Clarke, J. Proc. R. Soc. A 308, 447 (1969).
Long, A. P., Prance, R. J., Clark, T. D., Hughes, J. & Widom, A. (in preparation).
Kadanoff, L. D. & Laramore, G. Phys. Rev. 175, 579 (1968).
Clark, T. D. & Tilley, D. R. Phys. Lett. 29 A, 514 (1969).
Lickarev, K. K. Rev. Mod. Phys. 51, 126 (1979).
Buhrman, R. A. Proc. I.C. SQUID (eds Hahlbohm, H. D. & Lübbig, H.) (de Gruyter, Berlin, 1976).
Tinkham, M., Octavio, M. & Skocpol, W. J. J. appl. Phys. 48, 1311 (1977).
Jackel, L. D., Warlaumont, J. M., Clark, T. D., Brown, J. C. & Buhrman, R. A. Appl. Phys. Lett. 28, 353 (1976).
Hansma, P. K. J. appl. Phys. 44, 191 (1973).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Prance, R., Long, A., Clark, T. et al. Macroscopic quantum electrodynamic effects in a superconducting ring containing a Josephson weak link. Nature 289, 543–549 (1981). https://doi.org/10.1038/289543a0
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1038/289543a0
This article is cited by
-
Recent Achievements on the Physics of High-T C Superconductor Josephson Junctions: Background, Perspectives and Inspiration
Journal of Superconductivity and Novel Magnetism (2013)
-
The Josephson pendulum as a nonlinear capacitor
Journal of Low Temperature Physics (1984)
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.
