Abstract
We show how future gravitational-wave detectors would be able to discriminate between the concordance cold dark matter cosmological model and up-to-date competing alternatives, e.g., dynamical dark energy (DE) models or modified gravity (MG) theories. Our method consists of using the weak-lensing magnification effect that affects a standard-siren signal because of its traveling through the Universe’s large scale structure. As a demonstration, we present constraints on DE and MG from proposed gravitational-wave detectors, namely Einstein Telescope and DECI-Hertz Interferometer Gravitational-Wave Observatory and Big-Bang Observer.
- Received 19 October 2012
DOI:https://doi.org/10.1103/PhysRevLett.110.151103
© 2013 American Physical Society