Light Sheets and the Covariant Entropy Conjecture

TL;DR

This paper critiques Bousso's covariant entropy conjecture by arguing that its light sheet definition is too broad, leading to violations of the holographic bound, and proposes a weaker alternative bound.

Contribution

It introduces a revised, weaker bound to replace Bousso's original light sheet concept, aiming to uphold the holographic principle.

Findings

Bousso's light sheet notion is too permissive.

The original covariant entropy conjecture can be violated.

A weaker bound better preserves the holographic principle.

Abstract

We examine the holography bound suggested by Bousso in his covariant entropy conjecture, and argue that it is violated because his notion of light sheet is too generous. We suggest its replacement by a weaker bound.