| 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: | Rashmikanta Mantry*, Kazuyuki Furuuchi*
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| Authors Affiliation: | *Manipal Centre for Natural Sciences, Centre of Excellence, Manipal Academy of Higher Education, Dr. T.M.A. Pai Planetarium Building, Manipa, 57610l4, Karnataka, India |
| Mode of Presentation: | 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. |
