Energy-momentum tensor near an evaporating black hole

  title={Energy-momentum tensor near an evaporating black hole},
  author={P. W. Davies and Stephen A. Fulling and W. G. Unruh},
  journal={Physical Review D},
We calculate the vacuum expectation value, T/sub nu../, of the energy--momentum tensor of a massless scalar field in a general two-dimensional spacetime and evaluate it in a two-dimensional model of gravitational collapse. In two dimensions, quantum radiation production is incompatible with a conserved and traceless T/sub nu../. We therefore resolve an ambiguity in our expression for T/sub nu../, regularized by a geodesic point-separation procedure, by demanding conservation but… 

Vacuum Energy at Apparent Horizon in Conventional Model of Black Holes

For a black hole of Schwarzschild radius $a$, we argue that the back-reaction of the vacuum energy-momentum tensor is in general important at the apparent horizon when the time scale of a process is

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On the origin of black hole evaporation radiation

  • P. Davies
  • Physics
    Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences
  • 1976
The physical basis underlying the black hole evaporation process is clarified by a calculation of the expectation value of the energy-momentum tensor for a massless scalar field in a completely

Vacuum for a massless quantum scalar field outside a collapsing shell in anti-de Sitter space–time

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The quantum stress-energy tensor of a massless scalar field propagating in the two-dimensional Vaidya-de Sitter metric, which describes a classical model spacetime for a dynamical evaporating black

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