Generating non-Gaussian states using collisions between Rydberg polaritons

TL;DR

This paper proposes a theoretical method to generate highly non-classical, non-Gaussian quantum states of light through Rydberg polariton collisions, enabling advanced quantum state engineering and collision physics probing.

Contribution

It introduces a novel approach for deterministic non-Gaussian state generation using Rydberg polariton interactions, with potential applications in quantum information and sensing.

Findings

Theoretical demonstration of negative Wigner function state generation

High-fidelity transfer of polariton states to photonic states

Potential for sensitive collision physics measurements

Abstract

We investigate theoretically the deterministic generation of quantum states with negative Wigner functions, by using giant non-linearities due to collisional interactions between Rydberg polaritons. The state resulting from the polariton interactions may be transferred with high fidelity into a photonic state, which can be analyzed using homodyne detection followed by quantum tomography. Besides generating highly non-classical states of the light, this method can also provide a very sensitive probe for the physics of the collisions involving Rydberg states.