Vacuum-noise squeezing at microwave frequencies using Josephson-parametric amplifier

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

doi:10.1016/0921-4526(91)90263-E

Vacuum-noise squeezing at microwave frequencies using Josephson-parametric amplifier

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

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

We have performed experiments on generating squeezed microwave radiation at 19.16 GHz using a Josephson-parametric amplifier. The cold termination at the input port and the amplifier were both cooled to 30 mK. At this temperature the equilibrium fluctuations coming from the cold termination consist of vacuum fluctuations with a noise temperature hv/2K of 0.46 K. We have observed 47 ± 8% squeezing of this vacuum noise by the Josephson-parametric amplifier. The amplifier's double-sideband noise temperature 0.446 K is comparable to the vacuum noise level.

Original language	English
Pages (from-to)	432-435
Number of pages	4
Journal	Physica B: Condensed Matter
Volume	169
Issue number	1-4
DOIs	https://doi.org/10.1016/0921-4526(91)90263-E
State	Published - 2 Feb 1991
Externally published	Yes

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title = "Vacuum-noise squeezing at microwave frequencies using Josephson-parametric amplifier",

abstract = "We have performed experiments on generating squeezed microwave radiation at 19.16 GHz using a Josephson-parametric amplifier. The cold termination at the input port and the amplifier were both cooled to 30 mK. At this temperature the equilibrium fluctuations coming from the cold termination consist of vacuum fluctuations with a noise temperature hv/2K of 0.46 K. We have observed 47 ± 8% squeezing of this vacuum noise by the Josephson-parametric amplifier. The amplifier's double-sideband noise temperature 0.446 K is comparable to the vacuum noise level.",

author = "B. Yurke and R. Movshovich and Kaminsky, {P. G.} and Smith, {A. D.} and Silver, {A. H.} and Simon, {R. W.} and Schneider, {M. V.} and R. Trambarulo",

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AU - Yurke, B.

AU - Movshovich, R.

AU - Kaminsky, P. G.

AU - Smith, A. D.

AU - Silver, A. H.

AU - Simon, R. W.

AU - Schneider, M. V.

AU - Trambarulo, R.

PY - 1991/2/2

Y1 - 1991/2/2

N2 - We have performed experiments on generating squeezed microwave radiation at 19.16 GHz using a Josephson-parametric amplifier. The cold termination at the input port and the amplifier were both cooled to 30 mK. At this temperature the equilibrium fluctuations coming from the cold termination consist of vacuum fluctuations with a noise temperature hv/2K of 0.46 K. We have observed 47 ± 8% squeezing of this vacuum noise by the Josephson-parametric amplifier. The amplifier's double-sideband noise temperature 0.446 K is comparable to the vacuum noise level.

AB - We have performed experiments on generating squeezed microwave radiation at 19.16 GHz using a Josephson-parametric amplifier. The cold termination at the input port and the amplifier were both cooled to 30 mK. At this temperature the equilibrium fluctuations coming from the cold termination consist of vacuum fluctuations with a noise temperature hv/2K of 0.46 K. We have observed 47 ± 8% squeezing of this vacuum noise by the Josephson-parametric amplifier. The amplifier's double-sideband noise temperature 0.446 K is comparable to the vacuum noise level.

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EP - 435

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

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ER -

Vacuum-noise squeezing at microwave frequencies using Josephson-parametric amplifier

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