Energy-Momentum Tensor and Particle Creation in the de Sitter Universe

Details Energy-Momentum Tensor and Particle Creation in the de Sitter Universe Energy-Momentum Tensor and Particle Creation in the de Sitter Universe

1997-10-18

arxiv.org/abs/gr-qc/9710088v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

3 pages, 1 figure, revtex. To appear in the proceedings of the 8th Marcel Grossmann Meeting

Scientific paper

For a quantum field in a curved background the choice of the vacuum state is
crucial. We exhibit a vacuum state in which the expectation values of the
energy and pressure allow an intuitive interpretation. We apply this general
result to the de Sitter universe.

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