Entanglement detection in quantum many-body systems using entropic uncertainty relations

2021/01/31 by Bjarne Bergh, Martin Gärttner · 27 citations
Computer Science · Mathematics · Physics and Astronomy · #Entropic uncertainty #Mathematics #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum discord #Quantum entanglement #Quantum many-body systems #Quantum mechanics #Quantum state #Quantum system #Statistical physics #Uncertainty principle #cond-mat.quant-gas #quant-ph

paper · pdf · doi:10.1103/physreva.103.052412

published in Physical Review A 103(5) (American Physical Society) · 21 pages, 8 figures; v2: accepted version; see also the companion paper arXiv:2101.08847 [Phys. Rev. Lett. 126, 190503 (2021)]

openalex publication_date 2021/05/12 · arxiv created 2021/05/22 · arxiv updated 2021/05/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

The authors study experimentally accessible lower bounds on entanglement measures for quantum many-body systems based on entropic uncertainty relations. Rather than requiring the full reconstruction of the quantum state, the bound derived here requires measuring joint probability distributions in only two different measurement settings per subsystem.

Citations

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