Citation

BibTex format

@article{de:2021:08/018,
author = {de, Rham C and Melville, S and Noller, J},
doi = {08/018},
journal = {Journal of Cosmology and Astroparticle Physics},
pages = {1--25},
title = {Positivity bounds on dark energy: when matter matters},
url = {http://dx.doi.org/10.1088/1475-7516/2021/08/018},
volume = {2021},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Positivity bounds — constraints on any low-energy effective field theory imposed by the fundamental axioms of unitarity, causality and locality in the UV — have recently been used to constrain scalar-tensor theories of dark energy. However, the coupling to matter fields has so far played a limited role. We show that demanding positivity when including interactions with standard matter fields leads to further constraints on the dark energy parameter space. We demonstrate how implementing these bounds as theoretical priors affects cosmological parameter constraints and explicitly illustrate the impact on a specific Effective Field Theory for dark energy. We also show in this model that the existence of a standard UV completion requires that gravitational waves must travel superluminally on cosmological backgrounds.
AU  - de,Rham C
AU  - Melville,S
AU  - Noller,J
DO  - 08/018
EP  - 25
PY  - 2021///
SN  - 1475-7516
SP  - 1
TI  - Positivity bounds on dark energy: when matter matters
T2  - Journal of Cosmology and Astroparticle Physics
UR  - http://dx.doi.org/10.1088/1475-7516/2021/08/018
UR  - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000686656000004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
UR  - https://iopscience.iop.org/article/10.1088/1475-7516/2021/08/018
UR  - http://hdl.handle.net/10044/1/106021
VL  - 2021
ER  -
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