One-step preparation of 3D Bell and 3D GHZ states with Rydberg atoms

TL;DR

This paper presents a scheme for efficiently generating high-dimensional Bell and GHZ entangled states using Rydberg atoms, optimizing interactions and accounting for decoherence to achieve high fidelity.

Contribution

It introduces a novel method leveraging Rydberg-mediated interactions and parameter optimization for high-fidelity 3D entangled state preparation.

Findings

Numerical simulations show high fidelity achievable.

Effective chain-like configuration simplifies system dynamics.

Decoherence factors are successfully mitigated.

Abstract

Three-dimensional Bell states and GHZ states serve as representative examples of high-dimensional entangled states. In this paper, we propose a scheme for generating three-dimensional Bell and GHZ entangled states using Rydberg atoms. By leveraging Rydberg-mediated interactions and introducing detuning, the system is effectively simplified into a chain-like configuration. To design effective couplings, we employ a centrosymmetric Gaussian distribution and optimize the relevant parameters. Furthermore, we take into account decoherence factors including atomic spontaneous emission, dephasing effects and random noise. Numerical simulations indicate that the proposed scheme can achieve high fidelity.