35 citations · 57 across the 2 of their papers we have counts for
Showing astro-ph.COShow all
2 papers · 1 filter
astro-ph.CO2015★ 22 cited
Oscillating modulation to B-mode polarization from varying propagating speed of primordial gravitational waves
Yong Cai, Yu-Tong Wang, Yun-Song Piao
In low-energy effective string theory and modified gravity theories, the propagating speed of primordial gravitational waves may deviate from unity. We find that the step-lik…
astro-ph.CO2015★ 35 cited
Pre-inflationary primordial perturbations
Yong Cai, Yu-Tong Wang, Yun-Song Piao
The large-scale power deficit in the cosmic microwave background fluctuations might be relevant with the physics of pre-inflation, a bounce, or a superinflationary phase preceding…