Measurements of current noise in DC SQUIDS

作者: J. Martinis , J. Clarke

DOI: 10.1109/TMAG.1983.1062411

关键词:

摘要: The current noise circulating around the loop of a tunnel junction dc SQUID has been measured as function applied flux. flux generated by this was coupled via superconducting transformer to second that used measure in null-balancing configuration. voltage across also measured, using cooled LC-resonant circuit, and correlation between noises determined. values are good agreement with obtained from an analog simulator.

参考文章(6)
M. B. Ketchen, J. M. Jaycox, Ultra‐low‐noise tunnel junction dc SQUID with a tightly coupled planar input coil Applied Physics Letters. ,vol. 40, pp. 736- 738 ,(1982) , 10.1063/1.93210
Claudia D. Tesche, John Clarket, DC SQUID: CURRENT NOISE Journal of Low Temperature Physics. ,vol. 37, pp. 397- 403 ,(1979) , 10.1007/BF00119197
Richard W. Henry, Daniel E. Prober, Electronic analogs of double‐junction and single‐junction SQUIDs Review of Scientific Instruments. ,vol. 52, pp. 902- 914 ,(1981) , 10.1063/1.1136689
John Clarke, Claudia D. Tesche, R. P. Giffard, Optimization of dc SQUID voltmeter and magnetometer circuits Journal of Low Temperature Physics. ,vol. 37, pp. 405- 420 ,(1979) , 10.1007/BF00119198
J. J. P. Bruines, V. J. de Waal, J. E. Mooij, Comment on: ''DC SQUID: Noise and Optimization'' by Tesche and Clarke Journal of Low Temperature Physics. ,vol. 46, pp. 383- 386 ,(1982) , 10.1007/BF00655060
Claudia D. Tesche, John Clarke, dc SQUID: Noise and optimization Journal of Low Temperature Physics. ,vol. 29, pp. 301- 331 ,(1977) , 10.1007/BF00655097