activity
19972026
most citedEarly-universe constraints on a time-varying fine structure constant

134 citations · 770 across the 19 of their papers we have counts for

collaborators

15 papers

astro-ph.CO2026

Euclid preparation. Impact of redshift distribution uncertainties on the joint analysis of photometric galaxy clustering and weak gravitational lensing

Euclid Collaboration, K. A. Bertmann, A. Porredon +290

One of the mission's key projects is the so-called 32pt analysis, that is, the combination of cosmic shear, photometric galaxy clustering, and galaxy-gala…

astro-ph.CO2012★ 37 cited

The Fine Structure Constant and the CMB Damping Scale

Eloisa Menegoni, Maria Archidiacono, Erminia Calabrese +3

The recent measurements of the Cosmic Microwave Background anisotropies at arcminute angular scales performed by the ACT and SPT experiments are probing the damping regime of CMB f…

hep-ph2010★ 11 cited

Evolution of Cosmic Necklaces and Lattices

C. J. A. P. Martins

Previously developed analytic models for the evolution of cosmic string and monopole networks are applied to networks of monopoles attached to two or more strings; the former case…

astro-ph.CO2010★ 32 cited

Varying couplings in the early universe: correlated variations of and

C. J. A. P. Martins, Eloisa Menegoni, Silvia Galli +2

The Cosmic Microwave Background anisotropies provide a unique opportunity to constrain simultaneous variations of the fine-structure constant and Newton's gravitational constan…

astro-ph2003★ 85 cited

Measuring in the Early Universe: CMB Polarization, Reionization and the Fisher Matrix Analysis

G. Rocha, R. Trotta, C. J. A. P. Martins +4

We present a detailed analysis of present and future Cosmic Microwave Background constraints of the value of the fine-structure constant, . We carry out a more detailed analysis…

astro-ph2003★ 30 cited

New constraints on varying

G. Rocha, R. Trotta, C. J. A. P. Martins +3

We present a summary of recent constraints on the value of the fine-structure constant at the epoch of decoupling from the recent observations made by the Wilkinson Microwave Aniso…