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

• URL: http://arxiv.org/abs/2202.12079v2
• Date: Wed, 31 Aug 2022 08:53:10 GMT
• Title: Robustness of non-locality in many-body open quantum systems
• Authors: Carlo Marconi, Andreu Riera-Campeny, Anna Sanpera, and Albert Aloy
• Abstract summary: Non-locality consists in the existence of non-classical correlations between local measurements. We show that non-local correlations are present, can be detected and might be robust against noise in many-body open quantum systems.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• 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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