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

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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

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.

Original languageEnglish
Title of host publicationQuantum Communications and Quantum Imaging VI
DOIs
StatePublished - 2008
Externally publishedYes
EventQuantum Communications and Quantum Imaging VI - San Diego, CA, United States
Duration: Aug 12 2008Aug 14 2008

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7092
ISSN (Print)0277-786X

Conference

ConferenceQuantum Communications and Quantum Imaging VI
Country/TerritoryUnited States
CitySan Diego, CA
Period08/12/0808/14/08

Keywords

  • Entanglement
  • Nonlinear optics
  • Quantum imaging
  • Quantum optics

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