135 citations · 445 across the 12 of their papers we have counts for
Showing 2012Show all
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gr-qc2012★ 48 cited
A Galileon Design of Slow Expansion: II
Zhi-Guo Liu, Yun-Song Piao
We parameterize the evolutions of the slow expansion, which emerges from a static state in infinite past, into different classes. We show that the scale invariant adiabatical pertu…
gr-qc2012★ 28 cited
Phantom Inflation in Little Rip
Zhi-Guo Liu, Yun-Song Piao
We study the phantom inflation in little rip cosmology, in which the current acceleration is driven by the field with the parameter of state w < -1, but since w tends to -1 asympto…
gr-qc2012★ 16 cited
Scalar Perturbations Through Cycles
Zhi-Guo Liu, Yun-Song Piao
We analytically and numerically investigate the evolutions of the scalar perturbations through the cycles with nonsingular bounce. It is found that the amplitude of the curvature p…