Averaged Energy Conditions and Evaporating Black Holes

Details Averaged Energy Conditions and Evaporating Black Holes Averaged Energy Conditions and Evaporating Black Holes

1995-06-23

arxiv.org/abs/gr-qc/9506052v2

Phys.Rev. D53 (1996) 1988-2000

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Sections 2.1 and 2.2 have been revised and some erroneous statements corrected. The main conclusions and the figures are uncha

Scientific paper

10.1103/PhysRevD.53.1988

In this paper the averaged weak (AWEC) and averaged null (ANEC) energy conditions, together with uncertainty principle-type restrictions on negative energy (``quantum inequalities''), are examined in the context of evaporating black hole backgrounds in both two and four dimensions. In particular, integrals over only half-geodesics are studied. We determine the regions of the spacetime in which the averaged energy conditions are violated. In all cases where these conditions fail, there appear to be quantum inequalities which bound the magnitude and extent of the negative energy, and hence the degree of the violation. The possible relevance of these results for the validity of singularity theorems in evaporating black hole spacetimes is discussed.

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