Photon correlation transients in a weakly blockaded Rydberg ensemble
Abstract
The non-linear and non-local effects in atomic Rydberg media under electromagnetically induced transparency (EIT) make it a versatile platform for fundamental studies and applications in quantum information. In this paper, we study the dynamics of a Rydberg-EIT system in an ensemble that allows for more than one Rydberg excitation in the propagation direction. The density of two-level atoms is such that transient superradiant effects occur. We experimentally observe a cross-over between coherent collective emission (`flash') of two-level atoms to a Rydberg dressed regime ('dressed flash') under EIT condition. The complex dynamics are characterised using both intensity and time correlation measurements. We show that while steady-state EIT gives a second order correlation , the Rydberg-dressed flash exhibits anti-bunching down to .
Cite
@article{arxiv.1910.13155,
title = {Photon correlation transients in a weakly blockaded Rydberg ensemble},
author = {Charles Möhl and Nicholas L. R. Spong and Yuechun Jiao and Chloe So and Teodora Ilieva and Matthias Weidemüller and Charles S. Adams},
journal= {arXiv preprint arXiv:1910.13155},
year = {2020}
}