Article Dans Une Revue Journal of High Energy Physics Année : 2024

On the Quantum Bousso Bound in de Sitter JT gravity

Résumé

We prove the validity of the Strominger-Thompson quantum Bousso bound in the infinite class of conformal vacua of de Sitter space in semiclassical JT gravity. The Bousso-Fisher-Leichenauer-Wall quantum Bousso bound follows from an analogous derivation, requiring only initial quantum non-expansion. In this process, we show that the quantity ${2\pi k^{\mu}k^{\nu}<:T_{\mu\nu}:>-S"-\frac{6}{c}(S')^2}$ vanishes in any vacuum state, entailing a stronger version of Wall's quantum null energy condition. We derive an entropy formula in the presence of a generic class of two reflecting boundaries, in order to apply our argument to the half reduction model of de Sitter JT gravity.

Dates et versions

hal-04356114 , version 1 (20-12-2023)

Identifiants

Citer

Victor Franken, François Rondeau. On the Quantum Bousso Bound in de Sitter JT gravity. Journal of High Energy Physics, 2024, 03, pp.178. ⟨10.1007/JHEP03(2024)178⟩. ⟨hal-04356114⟩
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