Expectation of primordial gravity waves generated during inflation

The inflationary paradigm is extremely successful regarding predictions of temperature anisotropies in the CMB. However, inflation also makes predictions for a CMB B-mode polarization, which has not been detected. Moreover, the standard inflationary paradigm is unable to accommodate the evolution fr...

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Autores principales: León, Gabriel, Majhi, Abhishek, Okon, Elias, Sudarsky, Daniel
Formato: Articulo
Lenguaje:Inglés
Publicado: 2018
Materias:
Astronomía
Cosmology
Inflation
Gravity waves
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/95801
https://ri.conicet.gov.ar/11336/86608
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.98.023512
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-95801
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Astronomía
Cosmology
Inflation
Gravity waves
spellingShingle Astronomía
Cosmology
Inflation
Gravity waves
León, Gabriel
Majhi, Abhishek
Okon, Elias
Sudarsky, Daniel
Expectation of primordial gravity waves generated during inflation
topic_facet Astronomía
Cosmology
Inflation
Gravity waves
description The inflationary paradigm is extremely successful regarding predictions of temperature anisotropies in the CMB. However, inflation also makes predictions for a CMB B-mode polarization, which has not been detected. Moreover, the standard inflationary paradigm is unable to accommodate the evolution from the initial state, which is assumed to be symmetric, into a nonsymmetric aftermath. In [G. León, A. Majhi, E. Okon, and D. Sudarsky, Phys. Rev. D 96, 101301(R), (2017)], we show that the incorporation of an element capable of explaining such a transition drastically changes the prediction for the shape and size of the B-mode spectrum. In particular, employing a realistic objective collapse model in a well-defined semiclassical context, we find that, while predictions of temperature anisotropies are nor altered (with respect to standard predictions), the B-mode spectrum gets strongly suppressed - in accordance with observations. Here, we present an in-depth discussion of that analysis, together with the details of the calculation.
format Articulo
Articulo
author León, Gabriel
Majhi, Abhishek
Okon, Elias
Sudarsky, Daniel
author_facet León, Gabriel
Majhi, Abhishek
Okon, Elias
Sudarsky, Daniel
author_sort León, Gabriel
title Expectation of primordial gravity waves generated during inflation
title_short Expectation of primordial gravity waves generated during inflation
title_full Expectation of primordial gravity waves generated during inflation
title_fullStr Expectation of primordial gravity waves generated during inflation
title_full_unstemmed Expectation of primordial gravity waves generated during inflation
title_sort expectation of primordial gravity waves generated during inflation
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/95801
https://ri.conicet.gov.ar/11336/86608
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.98.023512
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AT majhiabhishek expectationofprimordialgravitywavesgeneratedduringinflation
AT okonelias expectationofprimordialgravitywavesgeneratedduringinflation
AT sudarskydaniel expectationofprimordialgravitywavesgeneratedduringinflation
bdutipo_str Repositorios
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