no code implementations • 26 Mar 2018 • Robert J. Hardwick, Vincent Vennin, David Wands
We also modify the form of the expected utility, as previously introduced in the literature in different contexts, in order to partition each possible future into either the rejection of models at the level of the maximum likelihood or the decision between models using Bayesian model comparison.
Cosmology and Nongalactic Astrophysics High Energy Physics - Theory
1 code implementation • 11 Jun 2014 • Guido W. Pettinari, Christian Fidler, Robert Crittenden, Kazuya Koyama, Antony Lewis, David Wands
We find that the presence of the intrinsic bispectrum will bias a measurement of primordial non-Gaussianity of local type by $f_{NL}^\text{bias}=0. 66$ for an ideal experiment with $\ell_\text{max}=3000$.
Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology
no code implementations • 14 Jan 2014 • Christian Fidler, Guido W. Pettinari, Martin Beneke, Robert Crittenden, Kazuya Koyama, David Wands
The intrinsic B-mode polarisation is present independent of the initial conditions and might contaminate the signal from primordial gravitational waves.
Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology
1 code implementation • 4 Feb 2013 • Guido W. Pettinari, Christian Fidler, Robert Crittenden, Kazuya Koyama, David Wands
We develop a new, efficient code for solving the second-order Einstein-Boltzmann equations, and use it to estimate the intrinsic CMB non-Gaussianity arising from the non-linear evolution of density perturbations.
Cosmology and Nongalactic Astrophysics High Energy Physics - Theory
