Speaker
Prof.
Minho Sohn
(KAIST)
Description
We will talk about our efforts for numerically estimating the QCD axion dark matter abundance from the topological cosmic string network. Using various state-of-art lattice simulations including the Adaptive Mesh Refinement (AMR), we establish the recently discovered scaling solution and to derive the power law of the axion power spectrum. We will describe the up-to-date status of the cosmic string simulation and existing issues, and finally will present some of our results.
