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A general proof of integer Rényi QNEC

arXiv
Authors: Tanay Kibe, Pratik Roy

Year

2026

Paper ID

63950

Status

Preprint

Abstract Read

~2 min

Abstract Words

123

Citations

N/A

Abstract

The Rényi quantum null energy condition conjectures that the second null shape variation of the sandwiched Rényi divergence (SRD) of an excited state relative to the vacuum is non-negative in local Poincaré-invariant quantum field theory, giving a one-parameter generalization of the quantum null energy condition (QNEC). We prove Rényi QNEC for all integer Rényi parameters ngeq 2 for von Neumann algebras carrying a half-sided modular inclusion structure. The only assumption on the excited state is finiteness of its SRD relative to the vacuum. Concretely, for any σ-finite von Neumann algebra with such an inclusion, we prove log-convexity, under the associated null-translation semigroup, of the Kosaki Ln norm of any normal positive functional with finite Ln norm.

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  • The Rényi quantum null energy condition conjectures that the second null shape variation of the sandwiched Rényi divergence (SRD) of an excited state relative to the vacuum is...

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