Quantum-correlated photons from spectrally-separated modes of a cavity coupled to a strongly-driven two-level atom

TL;DR

This paper theoretically investigates nonclassical photon statistics in a cavity-atom system, revealing antibunching and strong cross-correlations, and proposes a nanofiber cavity QED implementation with a cesium atom.

Contribution

It introduces a novel analysis of photon correlations in a strongly-driven cavity-atom system, linking dressed states to nonclassical photon statistics and proposing a practical experimental setup.

Findings

Cavity modes exhibit antibunching in photon statistics.

Modes show cross-correlation values greater than unity.

Proposed implementation with a nanofiber cavity QED system.

Abstract

Photon counting statistics are explored, theoretically, from a pair of cavity modes coupled to the fluorescent transitions in a strongly-driven two-level atom. We show that the cavity modes acquire nonclassical photon statistics that are representative of dressed-state picture atomic transitions. In particular, the modes are shown to be antibunched, while simultaneously having a cross-correlation value greater than unity. Furthermore, we propose an implementation of the system with a nanofiber cavity QED system, based on a strongly-driven cesium atom.