497 citations · 8.4k across the 112 of their papers we have counts for
4 papers · 1 filter
Searching for primordial magnetism with multi-frequency CMB experiments
Levon Pogosian
Bounds on the amplitude of a scale-invariant stochastic primordial magnetic field (PMF) can be significantly improved by measurements of the Faraday Rotation (FR) of CMB polarizati…
Principal Component Analysis of Modified Gravity using Weak Lensing and Peculiar Velocity Measurements
Shinsuke Asaba, Chiaki Hikage, Kazuya Koyama +3
We perform a principal component analysis to assess ability of future observations to measure departures from General Relativity in predictions of the Poisson and anisotropy equati…
CMB Faraday rotation as seen through the Milky Way
Soma De, Levon Pogosian, Tanmay Vachaspati
Faraday Rotation (FR) of CMB polarization, as measured through mode-coupling correlations of E and B modes, can be a promising probe of a stochastic primordial magnetic field (PMF)…
A practical approach to cosmological perturbations in modified gravity
Alessandra Silvestri, Levon Pogosian, Roman V. Buniy
The next generation of large scale surveys will not only measure cosmological parameters within the framework of General Relativity, but will also allow for precision tests of the…