A hybrid source of quantum light for generation of frequency tunable Fock states

TL;DR

This paper introduces a hybrid quantum light source that uses a nonlinear cavity coupled with a 2-level system to generate high-probability Fock states with tunable frequencies, advancing quantum technology applications.

Contribution

It presents a novel scheme for generating frequency-tunable Fock states using a hybrid nonlinear cavity and controlled pump pulses, enabling near-on-demand multi-photon states.

Findings

Generation of 1- and 2-photon states near-on-demand

Fock states with up to 7 photons at >50% probability

Ability to generate Fock states with arbitrary frequencies

Abstract

We propose a scheme for quantum-light generation in a nonlinear cavity hybridized with a 2-level system and theoretically show that, when excited by a series of controlled pump pulses, the hybrid source generates Fock states with high probabilities. E.g., 1- and 2-photon states can be generated near-on-demand, and Fock states with up to $7$ photons with a probability above $50\%$. The tailorable nature of the nonlinear cavity allows for generating Fock states with arbitrary frequencies, even with a fixed 2-level system, creating fundamentally new opportunities in all areas of quantum technologies.