Comments on "Counter example to the quantum inequality"

Details Comments on "Counter example to the quantum inequality" Comments on "Counter example to the quantum inequality"

2004-09-10

arxiv.org/abs/gr-qc/0409043v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5pp REVTeX

Scientific paper

In a recent preprint, Krasnikov has claimed that to show that quantum energy inequalities (QEIs) are violated in curved spacetime situations, by considering the example of a free massless scalar field in two-dimensional de Sitter space. We show that this claim is incorrect, and based on misunderstandings of the nature of QEIs. We also prove, in general two-dimensional spacetimes, that flat spacetime QEIs give a good approximation to the curved spacetime results on sampling timescales short in comparison with natural geometric scales.

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