Coherent State Assisted Entanglement Generation Between Quantum Memories

2025/04/29 by Chaohan Cui, Cui, Chaohan, Prajit Dhara +3 · 1 citation
Computer Science · Physics and Astronomy · #FOS: Physical sciences #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum Physics (quant-ph)

paper · pdf · doi:10.48550/arxiv.2504.20344

openalex publication_date 2025/04/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Generating entanglement deterministically at a capacity-approaching rate is critical for next-generation quantum networks. We propose weak-coherent-state-assisted protocols that can generate entanglement near-deterministically between reflective-cavity-based quantum memories at a success rate that exceeds the 50% limit associated with single-photon-mediated schemes. The most pronounced benefit is shown in the low-channel-loss regime and persists even with moderate noise. We extend our protocols to entangle an array of memories in a GHZ state, and infer that it yields an exponential speed-up compared to previous single-photon-based protocols.

Citations

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Cited by

• Entanglement Assisted Non-local Optical Interferometry in a Quantum Network

Related

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