Quantum Contributions to Cosmological Correlations

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dc.creatorWeinberg, Steven
dc.date2005-06-28
dc.date.accessioned2026-07-07T10:45:12Z
dc.date.available2026-07-07T10:45:12Z
dc.descriptionThe ``in-in'' formalism is reviewed and extended, and applied to the calculation of higher-order Gaussian and non-Gaussian correlations in cosmology. Previous calculations of these correlations amounted to the evaluation of tree graphs in the in-in formalism; here we also consider loop graphs. It turns out that for some though not all theories, the contributions of loop graphs as well as tree graphs depend only on the behavior of the inflaton potential near the time of horizon exit. A sample one-loop calculation is presented.
dc.description39 pages
dc.identifierhttps://arxiv.org/abs/hep-th/0506236
dc.identifierhttp://arxiv.org/abs/hep-th/0506236
dc.identifierPhys.Rev.D72:043514,2005
dc.identifierdoi:10.1103/PhysRevD.72.043514
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/182846
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleQuantum Contributions to Cosmological Correlations
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