Squeezed light and entangled images from four-wave-mixing in hot rubidium vapor

Raphael C. Pooser; Vincent Boyer; Alberto M. Marino; Paul D. Lett

doi:10.1117/12.795474

5 September 2008 Squeezed light and entangled images from four-wave-mixing in hot rubidium vapor

Raphael C. Pooser, Vincent Boyer, Alberto M. Marino, Paul D. Lett

Proceedings Volume 7092, Quantum Communications and Quantum Imaging VI; 70920G (2008) https://doi.org/10.1117/12.795474
Event: Optical Engineering + Applications, 2008, San Diego, California, United States

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.

Citation Download Citation

Raphael C. Pooser, Vincent Boyer, Alberto M. Marino, and Paul D. Lett "Squeezed light and entangled images from four-wave-mixing in hot rubidium vapor", Proc. SPIE 7092, Quantum Communications and Quantum Imaging VI, 70920G (5 September 2008); https://doi.org/10.1117/12.795474

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