56 citations · 367 across the 11 of their papers we have counts for
11 papers
New method to constrain the relativistic free-streaming gas in the Universe
Wen Zhao, Yang Zhang, Tianyang Xia
We discuss a method to constrain the fraction density of the relativistic gas in the radiation dominant stage, by their impacts on a relic gravitational waves and the cosmic mi…
Approximate Analytic Spectra of Reionized CMB Anisotropies and Polarization generated by Relic Gravitational Waves
T. Y. Xia, Y. Zhang
We present an approximate, analytical calculation of the reionized spectra of cosmic microwave background radiation (CMB) anisotropies and polarizations generated by rel…
Analytic Spectra of CMB Anisotropies and Polarization Generated by Relic Gravitational Waves with Modification due to Neutrino Free-Streaming
T. Y. Xia, Y. Zhang
We present an analytical calculation of the spectra of CMB anisotropies and polarizations generated by relic gravitational waves (RGWs). As a substantial extension to the previous…
Statefinder parameters for quantum effective Yang-Mills condensate dark energy model
Minglei Tong, Yang Zhang, Tianyang Xia
The quantum effective Yang-Mills condensate (YMC) dark energy model has some distinguished features that it naturally solves the coincidence problem and, at the same time, is able…
Relic Gravitational Waves And CMB Polarization In The Accelerating Universe
Y. Zhang, W. Zhao, T. Y. Xia +2
In this paper we briefly present our works on the relic gravitational waves (RGW) and the CMB polarization in the accelerating universe. The spectrum of RGW has been obtained, show…
Modifications by QCD transition and annihilation on analytic spectrum of relic gravitational waves in accelerating universe
Shuang Wang, Yang Zhang, Tian-Yang Xia +1
As predicted by quantum chromodynamics(QCD), around MeV in the early universe, the QCD transition occurs during which the quarks are combined into the massive hadrons.…