Pooser, R.
, Marino, A.
, Boyer, V.
, Jones, K.
and Lett, P.
(2009),
Low Noise Amplification of a Continuous Variable Quantum State, Physical Review Letters
(Accessed May 21, 2025)
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Low Noise Amplification of a Continuous Variable Quantum State
Published
Author(s)
, , , ,
Abstract
We present an experimental realization of a low-noise, universal, phase-insensitive optical amplifier using 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.Citation
Physical Review Letters
Volume
103
Issue
1
Pub Type
Journals
Keywords
entanglement, entanglement cloning, phase-insensitive amplification, quantum cloning, squeezed light
Citation
Issues
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Created June 29, 2009, Updated February 19, 2017