Abstract Details
| Name: Rashmikanta Mantry Affiliation: Manipal Centre for Natural Sciences, Centre of Excellence, MAHE Conference ID: ASI2025_667 Title : Cosmological implications of the chain early dark energy model Authors and Co-Authors : Rashmikanta Mantry*, Kazuyuki Furuuchi* Abstract Type : Poster Abstract Category : Galaxies and Cosmology Abstract : There is a tension between the Hubble constant values derived from observations of the early universe and those from the late universe. The early dark energy (EDE) models propose to relax the above tension by increasing the Hubble constant value obtained from the early universe observations. The EDE behaves as a slowly varying vacuum energy in the early universe. The energy density of EDE is initially negligible, then reaches the maximum around the matter-radiation equality, and then starts to dilute away after that. The Chain Early Dark Energy model is one of the models of EDE in which multiple phase transitions take place from a false vacuum to the nearest lower false vacuum by quantum tunnelling. In this work, we test the Chain Early Dark Energy model with cosmological observations. |