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Updated: Nov 24, 2025

Quasi-light Storage for Optical Data Packets

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Photon propagation through dissipative Rydberg media at large input rates.

Przemyslaw Bienias^1,2, James Douglas³, Asaf Paris-Mandoki^4,5

¹Joint Quantum Institute, National Institute of Standards and Technology and the University of Maryland, College Park, Maryland 20742, USA.

Physical Review Research

|December 28, 2020

Summary

We studied how light propagates through interacting Rydberg atoms, finding that at high photon rates, experimental results deviate from theory due to pollutants. This impacts understanding of many-body quantum optics.

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Area of Science:

Quantum optics
Atomic physics
Many-body physics

Background:

Electromagnetically induced transparency (EIT) enables study of light-matter interactions.
Rydberg blockade in dense atomic media causes strong photon-photon interactions.
High photon flux presents a challenge for many-body dissipative quantum systems.

Purpose of the Study:

Investigate dissipative propagation of quantized light in interacting Rydberg media.
Compare experimental results with novel theoretical models in the many-photon limit.
Identify and explain discrepancies between theory and experiment at high photon flux.

Main Methods:

Experimental study of pulse shapes and second-order correlation functions of outgoing light.
Comparison with simulations from two novel theoretical approaches.
Development of a phenomenological model to account for experimental discrepancies.

Main Results:

Good agreement between theory and experiment at low incoming photon flux.
Lower observed light intensity than predicted at higher photon flux.
Identification of Rydberg excitation 'pollutants' as the cause of discrepancy.
Observation of unconventional correlation function shapes at high photon rates.

Conclusions:

The developed theoretical models accurately describe low-flux photon propagation.
Pollutants, arising from reabsorbed scattered photons, significantly affect high-flux propagation.
Rydberg blockade physics leads to unique correlation functions in the high photon rate regime.