Interacting photon pulses in Rydberg medium

TL;DR

This paper introduces an efficient simulation method for the dynamical evolution of interacting photon pulses in Rydberg media, revealing phenomena like Rydberg blockade and significant absorption in anomalous dispersion regimes.

Contribution

It presents a novel simulation approach using local functions to accurately model narrowband photon pulse dynamics in Rydberg atomic ensembles.

Findings

Predicts Rydberg blockade and absorption phenomena under different pulse frequencies

Demonstrates pulse deformation due to non-uniform interactions

Provides insights into photon pulse behavior in Rydberg systems

Abstract

The understanding of dynamical evolutions of interacting photon pulses in Rydberg atomic ensemble is the prerequisite for realizing quantum devices with such system. We present an approach that efficiently simulates the dynamical processes, using a set of local functions we construct to reflect the profiles of narrowband pulses. For two counter-propagating photon pulses, our approach predicts the distinct phenomena from the widely concerned Rydberg blockade to the previously less noticed significant absorption in the anomalous dispersion regime, which can occur by respectively setting the pulse frequency to the appropriate values. Our numerical simulations also demonstrate how spatially extending photon pulses become deformed under realistic non-uniform interaction over their distributions.