Citation

BibTex format

@article{Baker:2023:03/044,
author = {Baker, T and Barausse, E and Chen, A and de, Rham C and Pieroni, M and Tasinato, G},
doi = {03/044},
journal = {Journal of Cosmology and Astroparticle Physics},
pages = {1--21},
title = {Testing gravitational wave propagation with multiband detections},
url = {http://dx.doi.org/10.1088/1475-7516/2023/03/044},
volume = {2023},
year = {2023}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Effective field theories (EFT) of dark energy (DE) — built to parameterise the properties of DE in an agnostic manner — are severely constrained by measurements of the propagation speed of gravitational waves (GW). However, GW frequencies probed by ground-based interferometers lie around the typical strong coupling scale of the EFT, and it is likely that the effective description breaks down before even reaching that scale. We discuss how this leaves the possibility that an appropriate ultraviolet completion of DE scenarios, valid at scales beyond an EFT description, can avoid present constraints on the GW speed. Instead, additional constraints in the lower frequency LISA band would be harder to escape, since the energies involved are orders of magnitude lower. By implementing a method based on GW multiband detections, we show indeed that a single joint observation of a GW150914-like event by LISA and a terrestrial interferometer would allow one to constrain the speed of light and gravitons to match to within 10-15. Multiband GW observations can therefore firmly constrain scenarios based on the EFT of DE, in a robust and unambiguous way.
AU  - Baker,T
AU  - Barausse,E
AU  - Chen,A
AU  - de,Rham C
AU  - Pieroni,M
AU  - Tasinato,G
DO  - 03/044
EP  - 21
PY  - 2023///
SN  - 1475-7516
SP  - 1
TI  - Testing gravitational wave propagation with multiband detections
T2  - Journal of Cosmology and Astroparticle Physics
UR  - http://dx.doi.org/10.1088/1475-7516/2023/03/044
UR  - http://hdl.handle.net/10044/1/106029
VL  - 2023
ER  -
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