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Does Dark Matter Interact with Dark Energy?

SourceSeminar Date of Publication:Mar 16,2023
03/16 2023 Seminar
  • Title Does Dark Matter Interact with Dark Energy?
  • Speaker Jiajun Zhang (Shanghai Astronomical Observatory)
  • Date 10:00 March. 16, 2023
  • Venue South Building6620 Tencent No.:564-471-058
  • Abstract
    In the standard cosmological model, LCDM model, dark matter and dark energy are two major components. However, whether there is interaction between dark matter and dark energy beyond gravity is unknown. Together with collaborators, I have developed the simulations and related codes for interacting dark energy model. Using N-body simulation, we have studied the impact of dark matter dark energy interaction on the structure formation. Combined with observations such as CMB, BAO, weak lensing and halo density profile, we have put strong constraints on the interaction between dark matter and dark energy.

    Bio:Prof. Jiajun Zhang is an assiociate professor from Shanghai Astronomical Observatory, Chinese Academy of Sciences. He got his PhD from The Chinese University of Hong Kong at 2017, and he worked at Shanghai Jiao Tong University from 2017 to 2019, worked at IBS, South Korea from 2019 to 2021. He returned to China and joined SHAO at 2021. His research interests are cosmology, N-body simulation, large scale structure, radio cosmology etc. His has published more than 30 SCI papers on well-known journals such as A&A, ApJ, PRD, MNRAS etc.

    Contact Shao-Jiang Wang