Path Integral Quantization of Cosmological Perturbations
arXiv:hep-th/9403091 · doi:10.1016/0370-2693(94)90939-3
Abstract
We derive the first order canonical formulation of cosmological perturbation theory in a Universe filled by a few scalar fields. This theory is quantized via well-defined Hamiltonian path integral. The propagator which describes the evolution of the initial (for instance, vacuum) state, is calculated.
16 pages, ETH-TH/94-09
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