338 citations · 1.5k across the 27 of their papers we have counts for
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astro-ph2008★ 59 cited
Testing Lorentz Invariance Violation with WMAP Five Year Data
Tina Kahniashvili, Ruth Durrer, Yurii Maravin
We consider different renormalizable models of Lorentz invariance violation. We show that the limits on birefringence of the propagation of cosmic microwave background photons from…
astro-ph2008★ 17 cited
Is Cosmology Compatible with Blue Gravity Waves ?
Roberta Camerini, Ruth Durrer, Alessandro Melchiorri +1
A primordial gravitational wave background with positive(blue) spectral index is expected in several non-standard inflationary cosmologies where the stress-energy tensor violates t…