Generation of seed perturbations from Quantum Cosmology

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dc.creatorSouradeep, Tarun
dc.date1992-08-11
dc.date.accessioned2026-07-07T11:34:19Z
dc.date.available2026-07-07T11:34:19Z
dc.descriptionThe origin of seed perturbations in the Universe is studied within the framework of a specific minisuperspace model. It is shown that the `creation' of the Universe as a result of a quantum transition from a flat empty spacetime would lead to a flat FLRW (Friedmann Lema\^ıtre Robertson-Walker) Universe with weak inhomogeneous perturbations at large wavelengths. The power spectrum of these perturbations is found to be scale invariant at horizon crossing (i.e., the Harrison-Zeldovich spectrum). It is also recognised that the seed perturbations generated in our model would be generically of the isocurvature kind.
dc.descriptionPlain Tex 24 Pages
dc.identifierhttps://arxiv.org/abs/gr-qc/9208003
dc.identifierhttp://arxiv.org/abs/gr-qc/9208003
dc.identifierAstrophys.J.402:375-381,1993
dc.identifierdoi:10.1086/172141
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/198208
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.titleGeneration of seed perturbations from Quantum Cosmology
dc.typetext

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