305 citations · 2.5k across the 92 of their papers we have counts for
14 papers · 1 filter
Testing Graviton Parity and Gaussianity with Planck T-, E- and B-mode Bispectra
Oliver H. E. Philcox, Maresuke Shiraishi
Many inflationary theories predict a non-Gaussian spectrum of primordial tensor perturbations, sourced from non-standard vacuum fluctuations, modified general relativity or new par…
Consistently constraining with the squeezed lensing bispectrum using consistency relations
Samuel Goldstein, Oliver H. E. Philcox, J. Colin Hill +2
We introduce a non-perturbative method to constrain the amplitude of local-type primordial non-Gaussianity () using squeezed configurations of the CMB lensing convergen…
Hybrid SBI or How I Learned to Stop Worrying and Learn the Likelihood
Chirag Modi, Oliver H. E. Philcox
We propose a new framework for the analysis of current and future cosmological surveys, which combines perturbative methods (PT) on large scales with conditional simulation-based i…
What can galaxy shapes tell us about physics beyond the standard model?
Oliver H. E. Philcox, Morgane J. König, Stephon Alexander +1
The shapes of galaxies trace scalar physics in the late-Universe through the large-scale gravitational potential. Are they also sensitive to higher-spin physics? We present a gener…
Testing Parity Symmetry with the Polarized Cosmic Microwave Background
Oliver H. E. Philcox, Maresuke Shiraishi
New physics in the early Universe could lead to parity-violation in the late Universe, sourcing statistics whose sign changes under point reflection. The best constraints on such p…
Signatures of a Parity-Violating Universe
William R. Coulton, Oliver H. E. Philcox, Francisco Villaescusa-Navarro
What would a parity-violating universe look like? We present a numerical and theoretical study of mirror asymmetries in the late universe, using a new suite of -body simulations…