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Proceedings Paper

Squeezed light and entangled images from four-wave-mixing in hot rubidium vapor
Author(s): Raphael C. Pooser; Vincent Boyer; Alberto M. Marino; Paul D. Lett
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Paper Abstract

Entangled multi-spatial-mode fields have interesting applications in quantum information, such as parallel quantum information protocols, quantum computing, and quantum imaging. We study the use of a nondegenerate four-wave mixing process in rubidium vapor at 795 nm to demonstrate generation of quantum-entangled images. Owing to the lack of an optical resonator cavity, the four-wave mixing scheme generates inherently multi-spatialmode output fields. We have verified the presence of entanglement between the multi-mode beams by analyzing the amplitude difference and the phase sum noise using a dual homodyne detection scheme, measuring more than 4 dB of squeezing in both cases. This paper will discuss the quantum properties of amplifiers based on four-wave-mixing, along with the multi mode properties of such devices.

Paper Details

Date Published: 5 September 2008
PDF: 11 pages
Proc. SPIE 7092, Quantum Communications and Quantum Imaging VI, 70920G (5 September 2008); doi: 10.1117/12.795474
Show Author Affiliations
Raphael C. Pooser, Joint Quantum Institute, National Institute of Standards and Technology, Univ. of Maryland (United States)
Vincent Boyer, Joint Quantum Institute, National Institute of Standards and Technology, Univ. of Maryland (United States)
Alberto M. Marino, Joint Quantum Institute, National Institute of Standards and Technology, Univ. of Maryland (United States)
Paul D. Lett, Joint Quantum Institute, National Institute of Standards and Technology, Univ. of Maryland (United States)


Published in SPIE Proceedings Vol. 7092:
Quantum Communications and Quantum Imaging VI
Ronald E. Meyers; Yanhua Shih; Keith S. Deacon, Editor(s)

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