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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Formato: | Articulo |
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2018
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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 |
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I19-R120-10915-95801 |
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institution |
Universidad Nacional de La Plata |
institution_str |
I-19 |
repository_str |
R-120 |
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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 |
work_keys_str_mv |
AT leongabriel expectationofprimordialgravitywavesgeneratedduringinflation AT majhiabhishek expectationofprimordialgravitywavesgeneratedduringinflation AT okonelias expectationofprimordialgravitywavesgeneratedduringinflation AT sudarskydaniel expectationofprimordialgravitywavesgeneratedduringinflation |
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Repositorios |
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1764820492345147397 |