117 citations · 970 across the 29 of their papers we have counts for
7 papers · 1 filter
Fingerprints of a Non-Inflationary Universe from Massive Fields
Jerome Quintin, Xingang Chen, Reza Ebadi
We construct explicit models of classical primordial standard clocks in an alternative to inflation, namely the slowly contracting ekpyrotic scenario. We study the phenomenology of…
Constraining interacting dark energy with CMB and BAO future surveys
Larissa Santos, Wen Zhao, Elisa G. M. Ferreira +1
In this paper, we perform a forecast analysis to test the capacity of future baryon acoustic oscillation (BAO) and cosmic microwave background (CMB) experiments to constrain phenom…
Black hole formation in a contracting universe
Jerome Quintin, Robert H. Brandenberger
We study the evolution of cosmological perturbations in a contracting universe. We aim to determine under which conditions density perturbations grow to form large inhomogeneities…
Searching for features of a string-inspired inflationary model with cosmological observations
Yi-Fu Cai, Elisa G. M. Ferreira, Bin Hu +1
The latest Planck results show a power deficit in the temperature anisotropies near in the cosmic microwave background (CMB). This observation can hardly be expla…
Cosmic String Loops as the Seeds of Super-Massive Black Holes
Sebastian F. Bramberger, Robert H. Brandenberger, Paul Jreidini +1
Recent discoveries of super-massive black holes at high redshifts indicate a possible tension with the standard Lambda CDM paradigm of early universe cosmology which has difficulti…
Evidence for interacting dark energy from BOSS
Elisa G. M. Ferreira, Jerome Quintin, André A. Costa +2
The result presented by the BOSS-SDSS Collaboration measuring the baryon acoustic oscillations of the Lyman- forest from high-redshift quasars indicates a departure from…
Nonsingular bouncing cosmologies in light of BICEP2
Yi-Fu Cai, Jerome Quintin, Emmanuel N. Saridakis +1
We confront various nonsingular bouncing cosmologies with the recently released BICEP2 data and investigate the observational constraints on their parameter space. In particular, w…