Electromagnetically Induced Transparency and slow light in media with Rydberg Excitons

TL;DR

This paper demonstrates that Electromagnetically Induced Transparency (EIT) can be achieved in media with Rydberg excitons, enabling significant slow light effects with potential experimental realizations in Cu$_2$O crystals.

Contribution

It introduces the possibility of EIT in Rydberg exciton media and provides realistic parameters for experimental implementation in Cu$_2$O crystals.

Findings

EIT is feasible in Rydberg exciton media.

Light can be slowed down by a factor of about 10,000 in such media.

Experimental parameters for Cu$_2$O crystals are provided.

Abstract

We show that the Electromagnetically Induced Transparency (EIT) is possible in a medium exhibiting Rydberg excitons and indicate the realistic parameters to perform the experiment. The calculations for a Cu$_2$O crystal are given which show that in this medium due to large group index one could expect slowing down a light pulse by a factor about $10^4$.