## Title: *The Constraints of Double-Peak Gravitational Waves produced during First-Order Cosmological Phase Transition from the Third LIGO-Virgo Observational Run*
In the seminar, I will introduce our results on the Constraints of Double-Peak Gravitational Waves produced during First-Order Cosmological Phase Transition from the Third LIGO-Virgo Observational Run.
In our previous paper, we propose a chameleon dark energy model as a solution to the Hubble tension. I report our current progress in testing our model with respect to the real data of the cosmic density field. The preliminary results roughly support our model.