Share Email Print
cover

Proceedings Paper

Measuring the propagation of entanglement and information in dispersive media
Author(s): Jeremy B. Clark; Ryan T. Glasser; Quentin Glorieux; Ulrich Vogl; Tian Li; Kevin M. Jones; Paul D. Lett
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Although it is widely accepted that information cannot travel faster than the speed of light in vacuum, the behavior of quantum correlations and entanglement propagating through actively–pumped dispersive media has not been thoroughly studied. Here we investigate the behavior of quantum correlations and information in the presence of a nonlinear dispersive gaseous medium. We show that the quantum correlations can be advanced by a small fraction of the correlation time while the entanglement is preserved even in the presence of noise added by phase–insensitive gain. Additionally, although we observe an advance of the peak of the quantum mutual information between the modes, we find that the degradation of the mutual information due to the added noise appears to prevent an advancement of the mutual information’s leading tail. In contrast, we show that both the leading and trailing tails of the mutual information in a slow–light system can be significantly delayed in the presence of four-wave mixing (4WM) and electromagnetically induced transparency.

Paper Details

Date Published: 10 March 2015
PDF: 9 pages
Proc. SPIE 9378, Slow Light, Fast Light, and Opto-Atomic Precision Metrology VIII, 93780T (10 March 2015); doi: 10.1117/12.2086776
Show Author Affiliations
Jeremy B. Clark, National Institute of Standards and Technology (United States)
Ryan T. Glasser, Tulane Univ. (United States)
Quentin Glorieux, Univ. Pierre et Marie Curie (France)
Ulrich Vogl, Max Planck Institute for the Science of Light (Germany)
Tian Li, National Institute of Standards and Technology (United States)
Kevin M. Jones, Williams College (United States)
Paul D. Lett, National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 9378:
Slow Light, Fast Light, and Opto-Atomic Precision Metrology VIII
Selim M. Shahriar; Jacob Scheuer, Editor(s)

© SPIE. Terms of Use
Back to Top