A precise measurement of the curvature of the Universe is of primeval
importance for cosmology since it could not only confirm the paradigm of
primordial inflation but also help in discriminating between different early
Universe scenarios. The recent observations, while broadly consistent with a
spatially flat standard $Łambda$ Cold Dark Matter ($Łambda$CDM) model, are
showing tensions that still allow (and, in some cases, even suggest) a few
percent deviations from a flat universe. In particular, the Planck Cosmic
Microwave Background power spectra, assuming the nominal likelihood, prefer a
closed universe at more than 99\% confidence level. While new physics could be
in action, this anomaly may be the result of an unresolved systematic error or
just a statistical fluctuation. However, since a positive curvature allows a
larger age of the Universe, an accurate determination of the age of the oldest
objects provides a smoking gun in confirming or falsifying the current flat
$Łambda$CDM model.
Description
Cosmology Intertwined IV: The Age of the Universe and its Curvature
%0 Generic
%1 divalentino2020cosmology
%A Di Valentino, Eleonora
%A Anchordoqui, Luis A.
%A Ali-Haimoud, Yacine
%A Amendola, Luca
%A Arendse, Nikki
%A Asgari, Marika
%A Ballardini, Mario
%A Battistelli, Elia
%A Benetti, Micol
%A Birrer, Simon
%A Bruni, Marco
%A Calabrese, Erminia
%A Camarena, David
%A Capozziello, Salvatore
%A Chen, Angela
%A Chluba, Jens
%A Chudaykin, Anton
%A Colgáin, Eoin Ó
%A Cyr-Racine, Francis-Yan
%A de Bernardis, Paolo
%A Delabrouille, Jacques
%A Ferté, Agnès
%A Finelli, Fabio
%A Freedman, Wendy
%A Frusciante, Noemi
%A Giusarma, Elena
%A Gómez-Valent, Adrià
%A Handley, Will
%A Hart, Luke
%A Heavens, Alan
%A Hildebrandt, Hendrik
%A Holz, Daniel
%A Huterer, Dragan
%A Ivanov, Mikhail M.
%A Joudaki, Shahab
%A Kamionkowski, Marc
%A Karwal, Tanvi
%A Knox, Lloyd
%A Lamagna, Luca
%A Lesgourgues, Julien
%A Lucca, Matteo
%A Marra, Valerio
%A Masi, Silvia
%A Matarrese, Sabino
%A Melchiorri, Alessandro
%A Mena, Olga
%A Mersini-Houghton, Laura
%A Miranda, Vivian
%A Mota, David F.
%A Muir, Jessica
%A Mukherjee, Ankan
%A Niedermann, Florian
%A Notari, Alessio
%A Nunes, Rafael C.
%A Pace, Francesco
%A Palmese, Antonella
%A Pan, Supriya
%A Paoletti, Daniela
%A Pettorino, Valeria
%A Piacentini, Francesco
%A Poulin, Vivian
%A Raveri, Marco
%A Riess, Adam G.
%A Salzano, Vincenzo
%A Saridakis, Emmanuel N.
%A Sen, Anjan A.
%A Shafieloo, Arman
%A Shajib, Anowar J.
%A Silk, Joseph
%A Silvestri, Alessandra
%A Sloth, Martin S.
%A Smith, Tristan L.
%A van de Bruck, Carsten
%A Verde, Licia
%A Visinelli, Luca
%A Wandelt, Benjamin D.
%A Yang, Weiqiang
%D 2020
%K library
%T Cosmology Intertwined IV: The Age of the Universe and its Curvature
%U http://arxiv.org/abs/2008.11286
%X A precise measurement of the curvature of the Universe is of primeval
importance for cosmology since it could not only confirm the paradigm of
primordial inflation but also help in discriminating between different early
Universe scenarios. The recent observations, while broadly consistent with a
spatially flat standard $Łambda$ Cold Dark Matter ($Łambda$CDM) model, are
showing tensions that still allow (and, in some cases, even suggest) a few
percent deviations from a flat universe. In particular, the Planck Cosmic
Microwave Background power spectra, assuming the nominal likelihood, prefer a
closed universe at more than 99\% confidence level. While new physics could be
in action, this anomaly may be the result of an unresolved systematic error or
just a statistical fluctuation. However, since a positive curvature allows a
larger age of the Universe, an accurate determination of the age of the oldest
objects provides a smoking gun in confirming or falsifying the current flat
$Łambda$CDM model.
@misc{divalentino2020cosmology,
abstract = {A precise measurement of the curvature of the Universe is of primeval
importance for cosmology since it could not only confirm the paradigm of
primordial inflation but also help in discriminating between different early
Universe scenarios. The recent observations, while broadly consistent with a
spatially flat standard $\Lambda$ Cold Dark Matter ($\Lambda$CDM) model, are
showing tensions that still allow (and, in some cases, even suggest) a few
percent deviations from a flat universe. In particular, the Planck Cosmic
Microwave Background power spectra, assuming the nominal likelihood, prefer a
closed universe at more than 99\% confidence level. While new physics could be
in action, this anomaly may be the result of an unresolved systematic error or
just a statistical fluctuation. However, since a positive curvature allows a
larger age of the Universe, an accurate determination of the age of the oldest
objects provides a smoking gun in confirming or falsifying the current flat
$\Lambda$CDM model.},
added-at = {2020-08-27T09:23:34.000+0200},
author = {Di Valentino, Eleonora and Anchordoqui, Luis A. and Ali-Haimoud, Yacine and Amendola, Luca and Arendse, Nikki and Asgari, Marika and Ballardini, Mario and Battistelli, Elia and Benetti, Micol and Birrer, Simon and Bruni, Marco and Calabrese, Erminia and Camarena, David and Capozziello, Salvatore and Chen, Angela and Chluba, Jens and Chudaykin, Anton and Colgáin, Eoin Ó and Cyr-Racine, Francis-Yan and de Bernardis, Paolo and Delabrouille, Jacques and Ferté, Agnès and Finelli, Fabio and Freedman, Wendy and Frusciante, Noemi and Giusarma, Elena and Gómez-Valent, Adrià and Handley, Will and Hart, Luke and Heavens, Alan and Hildebrandt, Hendrik and Holz, Daniel and Huterer, Dragan and Ivanov, Mikhail M. and Joudaki, Shahab and Kamionkowski, Marc and Karwal, Tanvi and Knox, Lloyd and Lamagna, Luca and Lesgourgues, Julien and Lucca, Matteo and Marra, Valerio and Masi, Silvia and Matarrese, Sabino and Melchiorri, Alessandro and Mena, Olga and Mersini-Houghton, Laura and Miranda, Vivian and Mota, David F. and Muir, Jessica and Mukherjee, Ankan and Niedermann, Florian and Notari, Alessio and Nunes, Rafael C. and Pace, Francesco and Palmese, Antonella and Pan, Supriya and Paoletti, Daniela and Pettorino, Valeria and Piacentini, Francesco and Poulin, Vivian and Raveri, Marco and Riess, Adam G. and Salzano, Vincenzo and Saridakis, Emmanuel N. and Sen, Anjan A. and Shafieloo, Arman and Shajib, Anowar J. and Silk, Joseph and Silvestri, Alessandra and Sloth, Martin S. and Smith, Tristan L. and van de Bruck, Carsten and Verde, Licia and Visinelli, Luca and Wandelt, Benjamin D. and Yang, Weiqiang},
biburl = {https://www.bibsonomy.org/bibtex/231fe16a80db4b4df48593dfc70ebae87/gpkulkarni},
description = {Cosmology Intertwined IV: The Age of the Universe and its Curvature},
interhash = {888c6ca48b99cd8698292cc0b444fa16},
intrahash = {31fe16a80db4b4df48593dfc70ebae87},
keywords = {library},
note = {cite arxiv:2008.11286Comment: Snowmass2021 - Letter of Interest},
timestamp = {2020-08-27T09:23:34.000+0200},
title = {Cosmology Intertwined IV: The Age of the Universe and its Curvature},
url = {http://arxiv.org/abs/2008.11286},
year = 2020
}