Lattice simulation of multi-stream inflation

  title={Lattice simulation of multi-stream inflation},
  author={Tingqi Cai and J. Jiang and Yi Wang},
  journal={Journal of Cosmology and Astroparticle Physics},
We present the first lattice simulation to investigate the nature of multi-stream inflation. The simulation confirms the physical picture of multi-stream inflation, and with new findings in parameter space and field behaviors. Our simulation shows that gradient energy plays a significant role in multi-stream inflation. For a double field potential with a shifted Gaussian barrier, bifurcation probability is controlled by the shift distance with an error function relation. The bubbles created by… 
Cosmological Standard Timers from Unstable Primordial Relics
Yi-Fu Cai, 2, ∗ Chao Chen, † Qianhang Ding, 3, ‡ and Yi Wang 3, § Department of Astronomy, School of Physical Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China CAS
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