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arXiv · 2202.12079

Robustness of non-locality in many-body open quantum systems

Carlo Marconi·Andreu Riera-Campeny·Anna Sanpera·Albert Aloy
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Abstract

Non-locality consists in the existence of non-classical correlations between local measurements. So far, it has been investigated mostly in isolated quantum systems. Here we show that non-local correlations are present, can be detected and might be robust against noise also in many-body open quantum systems, both in the steady-state and in the transient regime. We further discuss the robustness of non-local correlations when the open quantum system undergoes repeated measurements, a relevant scenario for quantum cryptography.

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Carlo Marconi, Andreu Riera-Campeny, Anna Sanpera, Albert Aloy. 2022-02-24. Robustness of non-locality in many-body open quantum systems. https://doi.org/10.1103/physreva.105.l060201

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