5 papers
Massive scalar fields in eccentric regime: Detectability and constraints from LISA observations of extreme mass-ratio inspirals
Tieguang Zi, Shailesh Kumar, Jun-Kun Zhao +2
Extreme mass-ratio inspirals (EMRIs) are among the prime sources for future space-borne gravitational wave (GW) observatories and provide a useful setting for testing the presence…
Self-resonance preheating in deformed attractor models: oscillon formation and evolution
Bao-Min Gu, Yu-Peng Zhang, Fu-Wen Shu +1
It is well known that, in potentials that are quadratic near the minimum but shallower away, such as small () attractors, the inflaton condensate fragments into loc…
Confronting Inflation and Reheating with Observations: Improved Predictions
Ying-Ying Ye, Bao-Min Gu
Using the latest observational data, we constrain the inflationary dynamics and the subsequent reheating epoch. Predictions for both phases can be significantly improved by employi…
Constraint on massive vector field with extreme-mass-ratio inspirals around a slowly rotating black hole
Tieguang Zi, Peng-Cheng Li, Bao-Min Gu +1
We study the influence of a massive vector (Proca) field on the energy fluxes from extreme-mass-ratio inspirals (EMRIs) around a slowly rotating Kerr black hole. The secondary comp…
Inflation with shallow dip and primordial black holes
Bao-Min Gu, Fu-Wen Shu, Ke Yang
Primordial black holes may arise through ultra slow-roll inflation. In this work we study a toy model of ultra slow-roll inflation with a shallow dip. The ultra slow-roll stage enh…