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A Bekenstein-type bound in QFT
Roberto Longo · 2024-09-22 · via cs.IT updates on arXiv.org

Let B be a spacetime region of width 2R > 0, and φa vector state localized in B. We show that the vacuum relative entropy of φ, on the local von Neumann algebra of B, is bounded by 2πR-times the energy of the state φin B. This bound is model-independent and rigorous; it follows solely from first principles in the framework of translation covariant, local Quantum Field Theory on the Minkowski spacetime.

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