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...
Guardado en:
| Autores principales: | , , |
|---|---|
| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_03702693_v743_n_p484_Bengochea |
| Aporte de: |
| id |
todo:paper_03702693_v743_n_p484_Bengochea |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_03702693_v743_n_p484_Bengochea2023-10-03T15:29:38Z Inhomogeneities from quantum collapse scheme without inflation Bengochea, G.R. Cañate, P. Sudarsky, D. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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 Bengochea, G.R. Cañate, P. Sudarsky, D. 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. |
| format |
JOUR |
| author |
Bengochea, G.R. Cañate, P. Sudarsky, D. |
| author_facet |
Bengochea, G.R. Cañate, P. Sudarsky, D. |
| author_sort |
Bengochea, G.R. |
| 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 |
| url |
http://hdl.handle.net/20.500.12110/paper_03702693_v743_n_p484_Bengochea |
| work_keys_str_mv |
AT bengocheagr inhomogeneitiesfromquantumcollapseschemewithoutinflation AT canatep inhomogeneitiesfromquantumcollapseschemewithoutinflation AT sudarskyd inhomogeneitiesfromquantumcollapseschemewithoutinflation |
| _version_ |
1807320394727686144 |