1 citations · 1 across the 4 of their papers we have counts for
6 papers
Consistent Thermal Resummation and Phase Transitions with 2PI Methods
Amitayus Banik, Kimmo Kainulainen
We apply the two-particle irreducible (2PI) formalism as a framework for a consistent thermal resummation in studies of cosmological phase transitions. Considering a model with two…
Primordial Gravitational Waves from Phase Transitions during Reheating
Amitayus Banik, Nicolás Bernal, Fazlollah Hajkarim
We study primordial gravitational waves (GWs) generated from first-order phase transitions (PTs) during cosmic reheating. Using a minimal particle physics model, and a general para…
Tracing Ultra Light Axions in Post-reionization, Lyman- and CMB Missions
Debarun Paul, Sourav Pal, Amit Dutta Banik +1
Ultra-light axions (ULAs) are dark matter candidates proposed to resolve the small scale anomalies of the standard cosmological model. Due to their inherent quantum pressure, ULAs…
Boson Stars Hosting Black Holes
Amitayus Banik, Jeong Han Kim, Xing-Yu Yang
We study a self-gravitating ultralight dark matter condensate (a boson star) hosting a central black hole, in the nonrelativistic limit, which we refer to as a boson star black hol…
Echoes of Self-Interacting Dark Matter from Binary Black Hole Mergers
Amitayus Banik, Jeong Han Kim, Jun Seung Pi +1
Dark matter (DM) environments around black holes (BHs) can influence their mergers through dynamical friction, causing gravitational wave (GW) dephasing during the inspiral phase.…
The Sound of Dark Sectors in Pulsar Timing Arrays
Amitayus Banik, Yanou Cui, Yu-Dai Tsai +1
A phase transition in the dark sector (DS) presents a promising explanation for the stochastic gravitational wave (GW) signals detected in recent observations by Pulsar Timing Arra…