100 citations · 896 across the 46 of their papers we have counts for
16 papers · 1 filter
Density profile of multi-state fuzzy dark matter
Lauren Street, Peter Suranyi, L. C. R. Wijewardhana
Equations of motion for excited states of weakly self-interacting bosons forming fuzzy dark matter are solved using the WKB approximation. The contribution of self-interactions are…
Global View of Axion Stars with (Nearly) Planck-Scale Decay Constants
Joshua Eby, Lauren Street, Peter Suranyi +1
We show that axion stars formed from axions with nearly Planck-scale decay constants are unstable to decay, and are unlikely to have phenomenological consequences. More general…
Galactic Condensates composed of Multiple Axion Species
Joshua Eby, Madelyn Leembruggen, Lauren Street +2
Ultralight scalar dark matter has been proposed to constitute a component of dark matter, though the minimal scenarios have increasingly become constrained. In this work, we analyz…
Global view of QCD axion stars
Joshua Eby, Madelyn Leembruggen, Lauren Street +2
Taking a comprehensive view, including a full range of boundary conditions, we reexamine QCD axion star solutions based on the relativistic Klein-Gordon equation (using the Ruffini…
On Approximation Methods in the Study of Boson Stars
Joshua Eby, Madelyn Leembruggen, Lauren Street +2
We analyze the accuracy of the variational method in computing physical quantities relevant for gravitationally bound Bose-Einstein condensates. Using a variety of variational ansä…
Expansion in Higher Harmonics of Boson Stars using a Generalized Ruffini-Bonazzola Approach, Part 1: Bound States
Joshua Eby, Peter Suranyi, L. C. R. Wijewardhana
The method pioneered by Ruffini and Bonazzola (RB) to describe boson stars involves an expansion of the boson field which is linear in creation and annihilation operators. In the n…