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The Impact of Quantum Cosmology on Quantum Field Theory

Giampiero Esposito
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Abstract

The basic problem of quantum cosmology is the definition of the quantum state of the universe, with appropriate boundary conditions on Riemannian three-geometries. This paper describes recent progress in the corresponding analysis of quantum amplitudes for Euclidean Maxwell theory and linearized gravity. Within the framework of Faddeev-Popov formalism and zeta-function regularization, various choices of mixed boundary conditions lead to a deeper understanding of quantized gauge fields and quantum gravity in the presence of boundaries.

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Giampiero Esposito. 1995-06-22. The Impact of Quantum Cosmology on Quantum Field Theory. https://arxiv.org/abs/gr-qc/9506046

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