The ultralight dark matter “core halo” relationship depends on the halo merger history.
Dark matter and dark energy
Gravitational waves provide unique opportunities to explore cosmology. Easther and his group have worked to understand possible gravitational wave signals generated during the inflationary phase, in the nonlinear phase following inflation, and from the dynamics of supermassive black holes in the present universe.
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Drag in Ultralight Dark Matter
Dynamical friction and ultralight dark matter
Perturbations of Schrödinger-Poisson solitons
Eigenstates of Schrödinger-Poisson solitons
The Distribution of Vacua in Random Landscape Potentials
A “landscape” can have many minima but all of them may still be negative – preventing it from solving the cosmological constant problem.