10 citations · 29 across the 5 of their papers we have counts for
4 papers · 1 filter
Dynamics of two-scalar-field cosmological models beyond the exponential potential
Yu Li
In this paper, we discuss the dynamics of two- scalar-field cosmological models. Unlike in the situation of exponential potential, we find that there are late-time attractors in wh…
Adiabatic and non-adiabatic perturbations for loop quantum cosmology
Yu Li, Jian-Yang Zhu
We generalize the perturbations theory of loop quantum cosmology to a hydrodynamical form and define an effective curvature perturbation on an uniform density hypersurfaces .…
Application of higher order holonomy corrections to perturbation theory of cosmology
Yu Li, Jian-Yang Zhu
Applying the higher order holonomy corrections to the perturbation theory of cosmology, the lattice power law of Loop Quantum Cosmology, , is analysed and the r…
Convergence of Perturbations for a Big Bounce in Loop Quantum Cosmology
Yu Li, Jian-Yang Zhu
We investigate the convergence behaviors of the scalar and the vector perturbations for a big bounce phase in loop quantum cosmology. Two models are discussed: one is the universe…