Low-Noise Amplification of a Continuous-Variable Quantum State

R. C. Pooser; A. M. Marino; V. Boyer; K. M. Jones; P. D. Lett

doi:10.1103/PhysRevLett.103.010501

Low-Noise Amplification of a Continuous-Variable Quantum State

R. C. Pooser, A. M. Marino, V. Boyer, K. M. Jones, P. D. Lett

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117 Scopus citations

Abstract

We present an experimental realization of a low-noise, phase-insensitive optical amplifier using a four-wave mixing interaction in hot Rb vapor. Performance near the quantum limit for a range of amplifier gains, including near unity, can be achieved. Such low-noise amplifiers are essential for so-called quantum cloning machines and are useful in quantum information protocols. We demonstrate that amplification and "cloning" of one half of a two-mode squeezed state is possible while preserving entanglement.

Original language	English
Article number	010501
Journal	Physical Review Letters
Volume	103
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.103.010501
State	Published - Jun 29 2009
Externally published	Yes

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10.1103/PhysRevLett.103.010501

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AU - Jones, K. M.

AU - Lett, P. D.

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Low-Noise Amplification of a Continuous-Variable Quantum State

Abstract

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