155 citations · 1.3k across the 30 of their papers we have counts for
31 papers
Modelling the 6.7 GHz Methanol Flaring in G358.93-0.03 Using the Maxwell-Bloch Framework
Ningyan Fang, Toktam Rashidi, Yoshinori Yonekura +4
We model selected 6.7 GHz methanol flare profiles in G358.93-0.03 using the one-dimensional Maxwell-Bloch framework. The 2019 non-periodic flare, associated with an accretion burst…
Terrestrial Very-Long-Baseline Atom Interferometry: Workshop Summary
Sven Abend, Baptiste Allard, Iván Alonso +250
This document presents a summary of the 2023 Terrestrial Very-Long-Baseline Atom Interferometry Workshop hosted by CERN. The workshop brought together experts from around the world…
Detection of Bosenovae with Quantum Sensors on Earth and in Space
Jason Arakawa, Joshua Eby, Marianna S. Safronova +2
In a broad class of theories, the accumulation of ultralight dark matter (ULDM) with particles of mass leads the to formation of long-l…
A Generic Formation Mechanism of Ultralight Dark Matter Solar Halos
Dmitry Budker, Joshua Eby, Marco Gorghetto +2
As-yet undiscovered light bosons may constitute all or part of the dark matter (DM) of our Universe, and are expected to have (weak) self-interactions. We show that the quartic sel…
What can a GNOME do? Search targets for the Global Network of Optical Magnetometers for Exotic physics searches
S. Afach, D. Aybas Tumturk, H. Bekker +50
Numerous observations suggest that there exist undiscovered beyond-the-Standard-Model particles and fields. Because of their unknown nature, these exotic particles and fields could…
New Constraints on Dark Matter and Cosmic Neutrino Profiles through Gravity
Yu-Dai Tsai, Joshua Eby, Jason Arakawa +2
We derive purely gravitational constraints on dark matter and cosmic neutrino profiles in the solar system using asteroid (101955) Bennu. We focus on Bennu because of its extensive…
From axion quality and naturalness problems to a high-quality QCD relaxion
Abhishek Banerjee, Joshua Eby, Gilad Perez
We highlight general issues associated with quality and naturalness problems in theories of light QCD-axions, axion-like particles, and relaxions. We show the presence of Planck-su…
New Horizons: Scalar and Vector Ultralight Dark Matter
D. Antypas, A. Banerjee, C. Bartram +123
The last decade has seen unprecedented effort in dark matter model building at all mass scales coupled with the design of numerous new detection strategies. Transformative advances…
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…
SpaceQ -- Direct Detection of Ultralight Dark Matter with Space Quantum Sensors
Yu-Dai Tsai, Joshua Eby, Marianna S. Safronova
Recent advances in quantum sensors, including atomic clocks, enable searches for a broad range of dark matter candidates. The question of the dark matter distribution in the Solar…
Probing Relativistic Axions from Transient Astrophysical Sources
Joshua Eby, Satoshi Shirai, Yevgeny V. Stadnik +1
Emission of relativistic axions from transient sources, such as axion star explosions, can lead to observable signatures. We show that axion bursts from collapsing axion stars can…
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…
Searching for Earth/Solar Axion Halos
Abhishek Banerjee, Dmitry Budker, Joshua Eby +4
We discuss the sensitivity of the present and near-future axion dark matter experiments to a halo of axions or axion-like particles gravitationally bound to the Earth or the Sun. T…
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…
Luminous Signals of Inelastic Dark Matter in Large Detectors
Joshua Eby, Patrick J. Fox, Roni Harnik +1
We study luminous dark matter signals in models with inelastic scattering. Dark matter that scatters inelastically off elements in the Earth is kicked into an excited state $…
Ultra-light dark matter in disk galaxies
Nitsan Bar, Kfir Blum, Joshua Eby +1
Analytic arguments and numerical simulations show that bosonic ultra-light dark matter (ULDM) would form cored density distributions (`solitons') at the center of galaxies. ULDM so…
Relaxion Stars and their detection via Atomic Physics
Abhishek Banerjee, Dmitry Budker, Joshua Eby +2
The cosmological relaxion can address the hierarchy problem, while its coherent oscillations can constitute dark matter in the present universe. We consider the possibility that th…
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…
Classical Nonrelativistic Effective Field Theory and the Role of Gravitational Interactions
Joshua Eby, Kyohei Mukaida, Masahiro Takimoto +2
Coherent oscillation of axions or axion-like particles may give rise to long-lived clumps, called axion stars, because of the attractive gravitational force or its self-interaction…
Stability of Condensed Fuzzy Dark Matter Halos
Joshua Eby, Madelyn Leembruggen, Peter Suranyi +1
Stability properties of gravitationally bound condensates composed of ultralight axionic Fuzzy Dark Matter (FDM) are studied. Previous work has shown that astrophysical collisions…
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…
Searching for axion stars and Q-balls with a terrestrial magnetometer network
D. F. Jackson Kimball, D. Budker, J. Eby +6
Light (pseudo-)scalar fields are promising candidates to be the dark matter in the Universe. Under certain initial conditions in the early Universe and/or with certain types of sel…
Decay of Ultralight Axion Condensates
Joshua Eby, Michael Ma, Peter Suranyi +1
Axion particles can form macroscopic condensates, whose size can be galactic in scale for models with very small axion masses eV, and which are sometimes referred t…