106 citations · 446 across the 12 of their papers we have counts for
5 papers · 1 filter
Primordial non-Gaussianity and power asymmetry with quantum gravitational effects in loop quantum cosmology
Tao Zhu, Anzhong Wang, Klaus Kirsten +2
Loop quantum cosmology (LQC) provides a resolution of the classical big bang singularity in the deep Planck era. The evolution, prior to the usual slow-roll inflation, naturally ge…
Power spectra and spectral indices of -inflation: high-order corrections
Tao Zhu, Anzhong Wang, Gerald Cleaver +2
-inflation represents the most general single-field inflation, in which the perturbations usually obey an equation of motion with a time-dependent sound speed. In this paper, we…
Gravitational quantum effects on power spectra and spectral indices with higher-order corrections
Tao Zhu, Anzhong Wang, Gerald Cleaver +2
The uniform asymptotic approximation method provides a powerful, systematically-improved, and error-controlled approach to construct accurate analytical approximate solutions of mo…
Inflationary cosmology with nonlinear dispersion relations
Tao Zhu, Anzhong Wang, Gerald Cleaver +2
We present a technique, {\em the uniform asymptotic approximation}, to construct accurate analytical solutions of the linear perturbations of inflation after quantum effects of the…
Constructing analytical solutions of linear perturbations of inflation with modified dispersion relations
Tao Zhu, Anzhong Wang, Gerald Cleaver +2
We develop a technique to construct analytical solutions of the linear perturbations of inflation with a nonlinear dispersion relation, due to quantum effects of the early universe…