174 citations · 1.3k across the 35 of their papers we have counts for
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hep-th2010★ 23 cited
Amplification of Curvature Perturbations in Cyclic Cosmology
Jun Zhang, Zhi-Guo Liu, Yun-Song Piao
We analytically and numerically show that through the cycles with nonsingular bounce the amplitude of curvature perturbation on large scale will be amplified and the power spectrum…
hep-th2010★ 12 cited
Preheating in Bubble Collisions
Jun Zhang, Yun-Song Piao
In a landscape with metastable minima, the bubbles will inevitably nucleate. We show that during the bubbles collide, due to the dramatically oscillating of the field at the collis…