Primordial fluctuations from inflation: a consistent histories approach |
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| Affiliation: | 1. Department of the Geophysical Sciences, The University of Chicago, Chicago, IL, 60637, USA;2. Chicago Center for Cosmochemistry, Chicago, IL, USA;3. Laboratory for Biological Geochemistry, School of Architecture, Civil & Environmental Engineering, École Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland;1. Department of Physics, University of Oxford, Parks Road, Oxford OX1 3PU, UK;2. AWE PLC, Reading RG7 4PR, UK;1. Centro Brasileiro de Pesquisas Físicas, Rua Xavier Sigaud, 150, Rio de Janeiro, Brazil;2. Departamento de Física, Facultad de Ciencias Exactas y Naturales, UNMdP, Deán Funes 3350, 7600 Mar del Plata, Argentina |
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| Abstract: | We show how the quantum-to-classical transition of the cosmological fluctuations produced during an inflationary stage can be described using the consistent histories approach. We identify the corresponding histories in the limit of infinite squeezing. To take the decaying mode into account, we propose an extension to coarse-grained histories. |
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