Probing Dynamics of Boson Stars by Fast Radio Bursts and Gravitational Wave Detection

Understand

Boson stars may consist of a new type of light singlet scalar particles with nontrivial self-interactions, and may compose a fraction of the dark matter in the Universe.

• In this work, we study the dynamics of boson stars with Liouville and logarithmic scalar self-interaction potentials as benchmarks.
• We perform a numerical analysis as well as a semi-analytic study on how the compactness and the total mass will deviate from that of the usual boson stars formed with a quartic repulsive self-interaction.
• We apply the recently suggested Swampland conjecture to examine whether boson stars with such benchmark potentials belong to the Landscape of a quantum gravity.