Efficient Entanglement Purification Circuit Design for Dual-Species Atom Arrays

Year: 2025

Type: preprint

Abstract: Entanglement purification protocols (EPPs) are essential for generating high-fidelity entangled states in noisy quantum systems, enabling robust quantum networking and computation. Building on the circuit of the foundational recurrence protocol, we generalize two-way EPPs to arbitrary stabilizer codes. Through analytical derivations and noisy circuit simulations incorporating circuit-level noise, we demonstrate enhanced purification performance, with fidelity improvements and finite distillation rates for distillable input states. We propose efficient circuit designs for EPPs tailored to dual-species Rydberg atom arrays, leveraging species-specific laser control and interspecies Rydberg interactions. Introducing a low-overhead operation set, the dual-species atom convenient operation set, we facilitate straightforward compilation of EPP circuits without the need for ancillary atoms or complex atom rearrangements. Our framework provides practical guidance for near-term implementations on dual-species platforms, advancing towards scalable entanglement distribution in neutral atom systems and paving the way for fault-tolerant quantum technologies.

Source: arXiv (Cornell University)

DOI: 10.1103/6j15-7mty

Authors: Li, Bikun, Dilley, Daniel, Gonzales, Alvin, Hahn, Thomas A., White, Ryan, Arnon, Rotem, Bernien, Hannes, Saleem, Zain, Jiang, Liang

Institutions: University of Chicago, Argonne National Laboratory, Weizmann Institute of Science

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, U.S. Department of Energy, Defense Advanced Research Projects Agency, Multidisciplinary University Research Initiative, Advanced Scientific Computing Research, Air Force Office of Scientific Research, Army Research Office

OpenAlex ID: W7082087522