117 citations · 970 across the 29 of their papers we have counts for
3 papers · 1 filter
Evolution of cosmological perturbations and the production of non-Gaussianities through a nonsingular bounce: Indications for a no-go theorem in single field matter bounce cosmologies
Jerome Quintin, Zeinab Sherkatghanad, Yi-Fu Cai +1
Assuming that curvature perturbations and gravitational waves originally arise from vacuum fluctuations in a matter-dominated phase of contraction, we study the dynamics of the cos…
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…