Vacuum Noise Squeezing At Microwave Frequencies Using A Josephson Parametric Amplifier

R. Movshovich; B. Yurke; P. G. Kaminsky; A. D. Smith; A. H. Silver; R. W. Simon

doi:10.1109/20.133758

Vacuum Noise Squeezing At Microwave Frequencies Using A Josephson Parametric Amplifier

R. Movshovich, B. Yurke, P. G. Kaminsky, A. D. Smith, A. H. Silver, R. W. Simon

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2 Scopus citations

Abstract

We have performed experiments on generating squeezed microwave radiation at 19.16GHz using a Josephson Parametric Amplifier. The source of the radiation was cooled by a dilution refrigerator down to the lowest temperature of.030K. At this temperature noise at the input port of the parametric amplifier consists almost entirely of the vacuum fluctuations with a noise temperature hv/2k of 0.46K. We have observed the squeezing of the microwave noise by 47 ± 8% as referred to the input of the Josephson Parametric Amplifier. The measured double-sideband noise temperature of the amplifier is 0.446K. which is comparable to the vacuum noise level.

Original language	English
Pages (from-to)	2658-2660
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	27
Issue number	2
DOIs	https://doi.org/10.1109/20.133758
State	Published - Mar 1991
Externally published	Yes

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abstract = "We have performed experiments on generating squeezed microwave radiation at 19.16GHz using a Josephson Parametric Amplifier. The source of the radiation was cooled by a dilution refrigerator down to the lowest temperature of.030K. At this temperature noise at the input port of the parametric amplifier consists almost entirely of the vacuum fluctuations with a noise temperature hv/2k of 0.46K. We have observed the squeezing of the microwave noise by 47 ± 8% as referred to the input of the Josephson Parametric Amplifier. The measured double-sideband noise temperature of the amplifier is 0.446K. which is comparable to the vacuum noise level.",

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AU - Movshovich, R.

AU - Yurke, B.

AU - Kaminsky, P. G.

AU - Smith, A. D.

AU - Silver, A. H.

AU - Simon, R. W.

PY - 1991/3

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N2 - We have performed experiments on generating squeezed microwave radiation at 19.16GHz using a Josephson Parametric Amplifier. The source of the radiation was cooled by a dilution refrigerator down to the lowest temperature of.030K. At this temperature noise at the input port of the parametric amplifier consists almost entirely of the vacuum fluctuations with a noise temperature hv/2k of 0.46K. We have observed the squeezing of the microwave noise by 47 ± 8% as referred to the input of the Josephson Parametric Amplifier. The measured double-sideband noise temperature of the amplifier is 0.446K. which is comparable to the vacuum noise level.

AB - We have performed experiments on generating squeezed microwave radiation at 19.16GHz using a Josephson Parametric Amplifier. The source of the radiation was cooled by a dilution refrigerator down to the lowest temperature of.030K. At this temperature noise at the input port of the parametric amplifier consists almost entirely of the vacuum fluctuations with a noise temperature hv/2k of 0.46K. We have observed the squeezing of the microwave noise by 47 ± 8% as referred to the input of the Josephson Parametric Amplifier. The measured double-sideband noise temperature of the amplifier is 0.446K. which is comparable to the vacuum noise level.

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JF - IEEE Transactions on Magnetics

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ER -

Vacuum Noise Squeezing At Microwave Frequencies Using A Josephson Parametric Amplifier

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