3 papers
astro-ph.CO2023
Testing the coupling of dark radiations in light of the Hubble tension
Zhiyu Lu, Batool Imtiaz, Dongdong Zhang +1
We are studying the effects of Self-Interacting dark radiation (SIdr) on the evolution of the universe. Our main focus is on the cosmic microwave background (CMB) and how SIdr coul…
astro-ph.HE2020
Updated constraints on superconducting cosmic strings from the astronomy of fast radio bursts
Batool Imtiaz, Rui Shi, Yi-Fu Cai
In this article we update constraints on superconducting cosmic strings (SCSs) in light of the recent observational developments of fast radio bursts (FRBs) astronomy. Assuming str…
hep-ph2018
Two-field cosmological phase transitions and gravitational waves in the singlet Majoron model
Youping Wan, Batool Imtiaz, Yi-Fu Cai
In the singlet Majoron model, we study cosmological phase transitions (PTs) and their resulting gravitational waves (GWs), in the two-field phase space, without freezing any of the…