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Quantum Penrose Inequality

Abstract

The classical Penrose inequality specifies a lower bound on the total mass in terms of the area of certain trapped surfaces. This fails at the semiclassical level. We conjecture a quantum Penrose inequality: the mass at spatial infinity is lower bounded by a function of the generalized entropy of the light sheet of appropriate quantum trapped surfaces. This is the first relation between quantum information in quantum gravity, and the total energy.

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