Dynamical boson stars

SL Liebling, C Palenzuela - Living Reviews in Relativity, 2023 - Springer
The idea of stable, localized bundles of energy has strong appeal as a model for particles. In
the 1950s, John Wheeler envisioned such bundles as smooth configurations of …

Ghost instabilities in self-interacting vector fields: The problem with proca fields

K Clough, T Helfer, H Witek, E Berti - Physical review letters, 2022 - APS
Massive vector fields feature in several areas of particle physics, eg, as carriers of weak
interactions, dark matter candidates, or an effective description of photons in a plasma. Here …

A lensed radio jet at milli-arcsecond resolution–II. Constraints on fuzzy dark matter from an extended gravitational arc

DM Powell, S Vegetti, JP McKean… - Monthly Notices of …, 2023 - academic.oup.com
Using a single gravitational lens system observed at≲ 5 mas resolution with very long
baseline interferometry, we place a lower bound on the mass of the fuzzy dark matter (FDM) …

Kinetic relaxation and Bose-star formation in multicomponent dark matter

M Jain, MA Amin, J Thomas… - Physical Review D, 2023 - APS
Using wave kinetics, we estimate the emergence timescale of gravitating Bose-Einstein
condensates/Bose stars in the kinetic regime for a general multicomponent Schrödinger …

Quantum fluctuations masquerade as haloes: bounds on ultra-light dark matter from quadruply imaged quasars

A Laroche, D Gilman, X Li, J Bovy… - Monthly Notices of the …, 2022 - academic.oup.com
Ultra-light dark matter (ULDM) refers to a class of theories, including ultra-light axions, in
which particles with mass comprise a significant fraction of the dark matter. A galactic scale …

Simulations of multifield ultralight axionlike dark matter

N Glennon, N Musoke, C Prescod-Weinstein - Physical Review D, 2023 - APS
As constraints on ultralight axionlike particles (ALPs) tighten, models with multiple species of
ultralight ALP are of increasing interest. We perform simulations of two-ALP models with …

In pursuit of Love numbers: First templated search for compact objects with large tidal deformabilities in the LIGO-Virgo data

HS Chia, TDP Edwards, D Wadekar, A Zimmerman… - Physical Review D, 2024 - APS
\We report results on the first matched-filtering search for binaries with compact objects
having large tidal deformabilities in the LIGO-Virgo gravitational wave (GW) data. The tidal …

Multifield ultralight dark matter

M Gosenca, A Eberhardt, Y Wang, B Eggemeier… - Physical Review D, 2023 - APS
Ultralight dark matter (ULDM) is usually taken to be a single scalar field. Here we explore the
possibility that ULDM consists of N light scalar fields with only gravitational interactions. This …

Dark photon dark matter without Stueckelberg mass

M Redi, A Tesi - Journal of High Energy Physics, 2022 - Springer
A bstract We study the scenario of dark photon Dark Matter where the mass is generated
through the Higgs mechanism rather than the constant Stueckelberg mass. In this …

Cosmological simulations of two-component wave dark matter

H Huang, HY Schive, T Chiueh - Monthly Notices of the Royal …, 2023 - academic.oup.com
ABSTRACT Wave (fuzzy) dark matter () consists of ultralight bosons, featuring a solitonic
core within a granular halo. Here we extend to two components, with distinct particle masses …