Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)

Bipartite quantum correlations in a fast-light medium generated with four-wave-mixing in rubidium vapour

Ulrich Vogl, Ryan T. Glasser, Paul D. Lett

Published May 1, 2013• 0 citations
Publisher

Abstract

We investigate the propagation of pre-existing quantum correlations through a fast-light medium with an experiment based on two successive four-wave mixing processes in rubidium vapour.
DOI
10.1109/cleoe-iqec.2013.6801721

Related papers

Quantum correlations between intense beams using four-wave mixing in atomic vapours: Theory and experiments

Quentin C. Glorieux, Romain Dubessy, Luca Guidoni +4 more

Four-wave mixing is well known to constitute an efficient mean of generating quantum correlated beams. After initial demonstration experiments, very large levels of quantum correlations were demonstrated recently and have motivated our theoretical study. This study is compared to classical and quantum quantities measured experimentally.

Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)•May 1, 2011•1 citation

Four-wave mixing in rubidium vapour with structured light and an external cavity

Rachel F. Offer

•Jan 1, 2018•0 citations

Four-wave-mixing stopped light in hot atomic rubidium vapour

Ryan M. Camacho, Praveen K. Vudyasetu, John C. Howell

Nature Photonics•Jan 25, 2009•155 citations

Fast light and quantum correlations from four-wave-mixing in atomic vapor

Ulrich Vogl, Ryan T. Glasser, Paul D. Lett

We recently demonstrated optical pulses with large negative group velocities using a scheme based on four-wave-mixing in rubidium vapor. Both the probe and the generated conjugate pulses can experience anomalous dispersion, and we have demonstrated a maximum group advancement of 64% relative to the input pulse width. The four-wave-mixing scheme allows us to send whole images through a fast light medium, and we have analyzed the arrival of spatially-encoded information in the system. We are currently investigating the transport of quantum correlations that are shared by the probe and conjugate modes when sent through fast light media.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Mar 6, 2013•0 citations

Advanced quantum noise correlations

Ulrich Vogl, Ryan T. Glasser, Jeremy B. Clark +4 more

We use the quantum correlations of twin-beams of light to probe the added noise when one of the beams propagates through a medium with anomalous dispersion. The experiment is based on two successive four-wave mixing processes in rubidium vapor, which allow for the generation of bright two-mode-squeezed twin-beams followed by a controlled advancement while maintaining the shared quantum-correlations between the beams. The demonstrated effect allows the study of irreversible decoherence in a medium exhibiting anomalous dispersion, and for the first time shows the advancement of a bright nonclassical state of light. The advancement and corresponding degradation of the quantum correlations are found to be operating near the fundamental quantum limit imposed by using a phase-insensitive amplifier.

arXiv:1305.6614•New Journal of Physics•Jan 10, 2014•29 citations

Cross correlation between entangled photon pairs from four-wave mixing in a Warm Ensemble of Rubidium

Tommy Willis, Francisco Willis, Daniel Hemmer +2 more

Bulletin of the American Physical Society•May 22, 2009•0 citations
We recently demonstrated optical pulses with large negative group velocities using a scheme based on four-wave-mixing in rubidium vapor. Both the probe and the generated conjugate pulses can experience anomalous dispersion, and we have demonstrated a maximum group advancement of 64% relative to the input pulse width. The four-wave-mixing scheme allows us to send whole images through a fast light medium, and we have analyzed the arrival of spatially-encoded information in the system. We are currently investigating the transport of quantum correlations that are shared by the probe and conjugate modes when sent through fast light media.
We use the quantum correlations of twin-beams of light to probe the added noise when one of the beams propagates through a medium with anomalous dispersion. The experiment is based on two successive four-wave mixing processes in rubidium vapor, which allow for the generation of bright two-mode-squeezed twin-beams followed by a controlled advancement while maintaining the shared quantum-correlations between the beams. The demonstrated effect allows the study of irreversible decoherence in a medium exhibiting anomalous dispersion, and for the first time shows the advancement of a bright nonclassical state of light. The advancement and corresponding degradation of the quantum correlations are found to be operating near the fundamental quantum limit imposed by using a phase-insensitive amplifier.