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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Movshovich, R. Yurke, B. Kaminsky, P.G. Smith, A.D. Silver, A.H. Simon, R.W. |
| Copyright Year | 1965 |
| Abstract | Experiments on generating squeezed microwave radiation at 19.16 GHz using a Josephson parametric amplifier were performed. The source of the radiation was cooled by a dilution refrigerator down to the lowest temperature of 0.030 K. At this temperature, noise at the input port of the parametric amplifier consists almost entirely of the vacuum fluctuations with a noise temperature h nu /2k of 0.46 K. The authors observed the squeezing of the microwave noise by 47+or-8% as referred to the input of the Josephson parametric amplifier. The measured double-sideband noise temperature of the amplifier is 0.446 K, which is comparable to the vacuum noise level. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 2658 |
| Ending Page | 2660 |
| Page Count | 3 |
| File Size | 339924 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 27 |
| Issue Number | 2 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1991-03-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Microwave frequencies Microwave amplifiers Optical amplifiers Noise measurement Noise level Fluctuations Temperature measurement Switches Detectors Refrigeration |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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