Work

Intracavity Rydberg Superatom for Optical Quantum Engineering: Coherent Control, Single-Shot Detection, and Optical π Phase Shift

Year: 2022

Type: article

Abstract: We demonstrate a new versatile building block for optical quantum technologies, enabling deterministic quantum engineering of light by combining the advantages of two complementary approaches: cavity quantum electrodynamics and interacting atomic ensembles.Our system is based on an intracavity Rydberg-blockaded atomic ensemble acting as a single two-level superatom.We coherently control its state and optically detect it in a single shot with 95% efficiency.Crucially, we demonstrate a superatom-statedependent π phase rotation on the light reflected from the cavity.Together with the state manipulation and detection, it is a key ingredient for implementing deterministic photonic entangling gates and for generating highly nonclassical light states.

Source: Physical Review X

DOI: 10.1103/physrevx.12.021034

Authors: Julien Vaneecloo, Sébastien Garcia, Alexei Ourjoumtsev

Institutions: Centre National de la Recherche Scientifique, Collège de France, Université Paris Sciences et Lettres, Sorbonne Université, Jeunes équipes de l'Institut de Physique du Collège de France

Language: English

Topic: Quantum optics and atomic interactions

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $4,200

Funders: Canadian Institute for Advanced Research, Agence Nationale de la Recherche, H2020 European Research Council