Spatially Averaged Quantum Inequalities Do Not Exist in Four-Dimensional Spacetime

Details Spatially Averaged Quantum Inequalities Do Not Exist in Four-Dimensional Spacetime Spatially Averaged Quantum Inequalities Do Not Exist in Four-Dimensional Spacetime

2002-08-16

arxiv.org/abs/gr-qc/0208045v2

Phys.Rev. D66 (2002) 124012

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

13 pages, 1 figure, minor corrections and added comments

Scientific paper

10.1103/PhysRevD.66.124012

We construct a particular class of quantum states for a massless, minimally coupled free scalar field which are of the form of a superposition of the vacuum and multi-mode two-particle states. These states can exhibit local negative energy densities. Furthermore, they can produce an arbitrarily large amount of negative energy in a given region of space at a fixed time. This class of states thus provides an explicit counterexample to the existence of a spatially averaged quantum inequality in four-dimensional spacetime.

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