Energy-Momentum Tensor and Particle Creation in the de Sitter Universe
Abstract
Description
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.
3 pages, 1 figure, revtex. To appear in the proceedings of the 8th Marcel Grossmann Meeting
3 pages, 1 figure, revtex. To appear in the proceedings of the 8th Marcel Grossmann Meeting