Dark Energy with Phantom Crossing and the H(0) Tension

We investigate the possibility of phantom crossing in the dark energy sector and the solution for the Hubble tension between early and late universe observations. We use robust combinations of different cosmological observations, namely the Cosmic Microwave Background (CMB), local measurement of Hub...

Descripción completa

Detalles Bibliográficos
Autores principales: Di Valentino, Eleonora, Mukherjee, Ankan, Sen, Anjan A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8065785/
https://www.ncbi.nlm.nih.gov/pubmed/33805393
http://dx.doi.org/10.3390/e23040404
_version_ 1783682422010806272
author Di Valentino, Eleonora
Mukherjee, Ankan
Sen, Anjan A.
author_facet Di Valentino, Eleonora
Mukherjee, Ankan
Sen, Anjan A.
author_sort Di Valentino, Eleonora
collection PubMed
description We investigate the possibility of phantom crossing in the dark energy sector and the solution for the Hubble tension between early and late universe observations. We use robust combinations of different cosmological observations, namely the Cosmic Microwave Background (CMB), local measurement of Hubble constant ([Formula: see text]), Baryon Acoustic Oscillation (BAO) and SnIa for this purpose. For a combination of CMB+BAO data that is related to early universe physics, phantom crossing in the dark energy sector was confirmed at a 95% confidence level and we obtained the constraint [Formula: see text] km/s/Mpc at a 68% confidence level, which is in perfect agreement with the local measurement by Riess et al. We show that constraints from different combinations of data are consistent with each other and all of them are consistent with phantom crossing in the dark energy sector. For the combination of all data considered, we obtained the constraint [Formula: see text] km/s/Mpc at a 68% confidence level and the phantom crossing happening at the scale factor [Formula: see text] at a 68% confidence level.
format Online
Article
Text
id pubmed-8065785
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-80657852021-04-25 Dark Energy with Phantom Crossing and the H(0) Tension Di Valentino, Eleonora Mukherjee, Ankan Sen, Anjan A. Entropy (Basel) Article We investigate the possibility of phantom crossing in the dark energy sector and the solution for the Hubble tension between early and late universe observations. We use robust combinations of different cosmological observations, namely the Cosmic Microwave Background (CMB), local measurement of Hubble constant ([Formula: see text]), Baryon Acoustic Oscillation (BAO) and SnIa for this purpose. For a combination of CMB+BAO data that is related to early universe physics, phantom crossing in the dark energy sector was confirmed at a 95% confidence level and we obtained the constraint [Formula: see text] km/s/Mpc at a 68% confidence level, which is in perfect agreement with the local measurement by Riess et al. We show that constraints from different combinations of data are consistent with each other and all of them are consistent with phantom crossing in the dark energy sector. For the combination of all data considered, we obtained the constraint [Formula: see text] km/s/Mpc at a 68% confidence level and the phantom crossing happening at the scale factor [Formula: see text] at a 68% confidence level. MDPI 2021-03-29 /pmc/articles/PMC8065785/ /pubmed/33805393 http://dx.doi.org/10.3390/e23040404 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) ).
spellingShingle Article
Di Valentino, Eleonora
Mukherjee, Ankan
Sen, Anjan A.
Dark Energy with Phantom Crossing and the H(0) Tension
title Dark Energy with Phantom Crossing and the H(0) Tension
title_full Dark Energy with Phantom Crossing and the H(0) Tension
title_fullStr Dark Energy with Phantom Crossing and the H(0) Tension
title_full_unstemmed Dark Energy with Phantom Crossing and the H(0) Tension
title_short Dark Energy with Phantom Crossing and the H(0) Tension
title_sort dark energy with phantom crossing and the h(0) tension
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8065785/
https://www.ncbi.nlm.nih.gov/pubmed/33805393
http://dx.doi.org/10.3390/e23040404
work_keys_str_mv AT divalentinoeleonora darkenergywithphantomcrossingandtheh0tension
AT mukherjeeankan darkenergywithphantomcrossingandtheh0tension
AT senanjana darkenergywithphantomcrossingandtheh0tension