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A Bekenstein-type bound in QFT

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arxiv 2409.14408 v1 pith:MCPZIVIY submitted 2024-09-22 math-ph cs.IThep-thmath.ITmath.MPmath.OA

A Bekenstein-type bound in QFT

classification math-ph cs.IThep-thmath.ITmath.MPmath.OA
keywords boundlocalspacetimestatealgebrabekenstein-typeboundedcovariant
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Let B be a spacetime region of width 2R > 0, and \phi a vector state localized in B. We show that the vacuum relative entropy of \phi, on the local von Neumann algebra of B, is bounded by 2\pi R-times the energy of the state \phi in 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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Cited by 1 Pith paper

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  1. Relative entropy for $\lambda \phi^4$ in the Rindler wedge

    hep-th 2026-07 accept novelty 6.5

    Relative entropy of vacuum vs coherent state for λφ⁴ in the Rindler wedge equals the classical interacting boost charge to O(λ) and obeys the Bekenstein bound.