532 citations · 7.4k across the 95 of their papers we have counts for
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Did JWST observe imprints of axion miniclusters or primordial black holes?
Gert Hütsi, Martti Raidal, Juan Urrutia +2
The James Webb Space Telescope has detected surprisingly luminous early galaxies that indicate a tension with the CDM. Motivated by scenarios including axion miniclusters or pri…
Microlensing of gravitational waves by dark matter structures
Malcolm Fairbairn, Juan Urrutia, Ville Vaskonen
Gravitational lensing of gravitational waves provides a potential new probe of dark matter structures. In this work, we consider the microlensing effect on gravitational wave signa…
Gravitational waves from bubble collisions and fluid motion in strongly supercooled phase transitions
Marek Lewicki, Ville Vaskonen
We estimate the gravitational wave spectra generated in strongly supercooled phase transitions by bubble collisions and fluid motion. We derive analytically in the thin-wall approx…
Anatomy of single-field inflationary models for primordial black holes
Alexandros Karam, Niko Koivunen, Eemeli Tomberg +2
We construct an analytically solvable simplified model that captures the essential features for primordial black hole (PBH) production in most models of single-field inflation. The…
Bubble dynamics in fluids with N-body simulations
Marek Lewicki, Ville Vaskonen, Hardi Veermäe
We present a new approach to studies of bubble dynamics in fluids. Relying on particle-based simulations, this method is general and suitable for cases where the commonly used perf…
Cold Atoms in Space: Community Workshop Summary and Proposed Road-Map
Ivan Alonso, Cristiano Alpigiani, Brett Altschul +246
We summarize the discussions at a virtual Community Workshop on Cold Atoms in Space concerning the status of cold atom technologies, the prospective scientific and societal opportu…