Inhomogeneities from quantum collapse scheme without inflation

In this work, we consider the problem of the emergence of seeds of cosmic structure in the framework of the non-inflationary model proposed by Hollands and Wald. In particular, we consider a modification to that proposal designed to account for breaking the symmetries of the initial quantum state, l...

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Detalles Bibliográficos
Publicado: 2015
Materias:
Cosmology
Inflation
Non-inflationary models
Quantum collapse schemes
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v743_n_p484_Bengochea
http://hdl.handle.net/20.500.12110/paper_03702693_v743_n_p484_Bengochea
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_03702693_v743_n_p484_Bengochea
record_format dspace
spelling paper:paper_03702693_v743_n_p484_Bengochea2023-06-08T15:37:19Z Inhomogeneities from quantum collapse scheme without inflation Cosmology Inflation Non-inflationary models Quantum collapse schemes In this work, we consider the problem of the emergence of seeds of cosmic structure in the framework of the non-inflationary model proposed by Hollands and Wald. In particular, we consider a modification to that proposal designed to account for breaking the symmetries of the initial quantum state, leading to the generation of the primordial inhomogeneities. This new ingredient is described in terms of a spontaneous reduction of the wave function. We investigate under which conditions one can recover an essentially scale free spectrum of primordial inhomogeneities, and which are the dominant deviations that arise in the model as a consequence of the introduction of the collapse of the quantum state into that scenario. © 2015 The Authors. 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v743_n_p484_Bengochea http://hdl.handle.net/20.500.12110/paper_03702693_v743_n_p484_Bengochea
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Cosmology
Inflation
Non-inflationary models
Quantum collapse schemes
spellingShingle Cosmology
Inflation
Non-inflationary models
Quantum collapse schemes
Inhomogeneities from quantum collapse scheme without inflation
topic_facet Cosmology
Inflation
Non-inflationary models
Quantum collapse schemes
description In this work, we consider the problem of the emergence of seeds of cosmic structure in the framework of the non-inflationary model proposed by Hollands and Wald. In particular, we consider a modification to that proposal designed to account for breaking the symmetries of the initial quantum state, leading to the generation of the primordial inhomogeneities. This new ingredient is described in terms of a spontaneous reduction of the wave function. We investigate under which conditions one can recover an essentially scale free spectrum of primordial inhomogeneities, and which are the dominant deviations that arise in the model as a consequence of the introduction of the collapse of the quantum state into that scenario. © 2015 The Authors.
title Inhomogeneities from quantum collapse scheme without inflation
title_short Inhomogeneities from quantum collapse scheme without inflation
title_full Inhomogeneities from quantum collapse scheme without inflation
title_fullStr Inhomogeneities from quantum collapse scheme without inflation
title_full_unstemmed Inhomogeneities from quantum collapse scheme without inflation
title_sort inhomogeneities from quantum collapse scheme without inflation
publishDate 2015
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v743_n_p484_Bengochea
http://hdl.handle.net/20.500.12110/paper_03702693_v743_n_p484_Bengochea
_version_ 1768544733971349504

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