Stationary light pulses and narrowband light storage in a laser-cooled ensemble loaded into a hollow-core fiber

TL;DR

This paper demonstrates stationary light pulses and narrowband light storage within a hollow-core fiber loaded with laser-cooled atoms, advancing quantum information processing capabilities.

Contribution

First observation of stationary light and narrowband storage inside a hollow-core fiber with laser-cooled atoms, enabling new quantum photonic applications.

Findings

Successful storage of light in a collective atomic excitation

Achieved stationary light pulses using counterpropagating control beams

Enhanced light-matter interaction in a fiber-loaded cold atom ensemble

Abstract

We report on the first observation of stationary light pulses and narrowband light storage inside a hollow-core photonic crystal fiber. Laser-cooled atoms were first loaded into the fiber core providing strong light-matter coupling. Light pulses were then stored in a collective atomic excitation using a single control laser beam. By applying a second counterpropagating control beam, a light pulse could be brought to a standstill. Our work paves the way towards the creation of strongly-correlated many-body systems with photons and applications in the field of quantum information processing.