The Formulation of Quantum Field Theory in Curved Spacetime

Details The Formulation of Quantum Field Theory in Curved Spacetime The Formulation of Quantum Field Theory in Curved Spacetime

2009-07-02

arxiv.org/abs/0907.0416v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

14 pages, no figures; to appear in proceedings of Beyond Einstein conference

Scientific paper

The usual formulations of quantum field theory in Minkowski spacetime make crucial use of Poincare symmetry, positivity of total energy, and the existence of a unique, Poincare invariant vacuum state. These and other key features of quantum field theory do not generalize straightforwardly to curved spacetime. We discuss the conceptual obstacles to formulating quantum field theory in curved spacetime and how they can be overcome

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