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Quantum Foundations

Nonlocality distillation can outperform entanglement distillation

arXiv

Authors: Peter Høyer, Jibran Rashid, Razeen ud Din

Year

2026

Paper ID

22517

Status

Preprint

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~2 min

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Abstract

Given the goal of maximizing CHSH violation, we compare the optimal strategies of entanglement and nonlocality distillation. In the limit of the number of copies of the shared state, entanglement distillation is guaranteed to work by generating a Bell state. For a small number of copies of the state, we show that nonlocality distillation can achieve a higher CHSH value, even though optimal entanglement distillation requires communication. Nonlocality distillation not only outperforms entanglement distillation but also demonstrates superior resource efficiency across multiple metrics for quantum resource estimation.

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Given the goal of maximizing CHSH violation, we compare the optimal strategies of entanglement and nonlocality distillation.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2603.00940 [2] arXiv https://arxiv.org/abs/2603.00940 [3] Publisher https://arxiv.org/abs/2603.00940

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External citation index: OpenAlex citation signal • updated 2026-06-18 12:14:21

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