55 citations · 225 across the 16 of their papers we have counts for
18 papers
(Re)constructing Accurate Axion Oscillations
Hoang Nhan Luu, Chanda Prescod-Weinstein
The cosmological evolution of ultralight axions typically involves rapid oscillations on the timescale of the inverse mass, making it challenging to resolve the dynamics at both th…
A Tale of Two Gauges: Effective Field Theory for Relativistic Behavior of Cosmological Axions
Hoang Nhan Luu, Chanda Prescod-Weinstein
In this work, we present a formalism to model the relativistic behavior of axions. The relativistic behavior of axions is surprisingly difficult to model precisely, as it involves…
The Lifespan of our Universe
Hoang Nhan Luu, Yu-Cheng Qiu, S. -H. Henry Tye
The Dark Energy Survey (DES) and the Dark Energy Spectroscopic Instrument (DESI) measurements claim that the dark energy equation of state . This observation can be expla…
Infalling ultra-faint dwarfs as emissaries of the Axiverse
A. Pozo, T. Broadhurst, H. N. Luu +8
Recent discoveries of ultra-faint dwarf galaxies (UFDs) infalling onto the Milky Way, namely Leo K \& M at kpc, considerably strengthens the case that UFDs constitute…
Dynamical dark energy from an ultralight axion
Hoang Nhan Luu, Yu-Cheng Qiu, S. -H. Henry Tye
Recently the Dark Energy Survey (DES) Collaboration presented evidence that the equation of state of the dark energy is varying, or if it is constant. In eith…
Pulsar Polarization Array Limits on Ultralight Axion-like Dark Matter
Xiao Xue, Shi Dai, Hoang Nhan Luu +20
We conduct the first-ever Pulsar Polarization Array (PPA) analysis to detect the ultralight Axion-Like Dark Matter (ALDM) using the polarization data of 22 millisecond pulsars from…
Diverse dark matter haloes in Two-field Fuzzy Dark Matter
Hoang Nhan Luu, Philip Mocz, Mark Vogelsberger +8
Fuzzy dark matter (FDM) is a compelling candidate for dark matter, offering a natural explanation for the structure of diffuse low-mass haloes. However, the canonical FDM model wit…
A smooth filament origin for distant prolate galaxies seen by JWST and HST
Alvaro Pozo, Tom Broadhurst, Razieh Emami +7
The initial gravitational collapse of Dark Matter and gas forms a universal filamentary network where the first galaxies form, with shapes and sizes that depend on the choice of Da…
Nested solitons in two-field fuzzy dark matter
Hoang Nhan Luu, Philip Mocz, Mark Vogelsberger +4
Dark matter as scalar particles consisting of multiple species is well motivated in string theory where axion fields are ubiquitous. A two-field fuzzy dark matter (FDM) model featu…
Stochastic Wave Dark Matter with Fermi-LAT -ray Pulsar Timing Array
Hoang Nhan Luu, Tao Liu, Jing Ren +4
Pulsar timing arrays (PTAs) can detect disturbances in the fabric of spacetime on a galactic scale by monitoring the arrival time of pulses from millisecond pulsars (MSPs). Recent…
Dwarf Galaxies United by Dark Bosons
Alvaro Pozo, Tom Broadhurst, George F. Smoot +4
Low mass galaxies in the Local Group are dominated by dark matter and comprise the well studied ``dwarf Spheroidal" (dSph) class, with typical masses of and also…
Axi-Higgs cosmology: Cosmic Microwave Background and cosmological tensions
Hoang Nhan Luu
Non-canonical cosmology with an uplifted Higgs vacuum expectation value (Higgs-VEV) in the early universe is believed to provide the solution for existing tensions within the CD…
The Hubble Constant in the Axi-Higgs Universe
Leo WH Fung, Lingfeng Li, Tao Liu +3
The CDM model provides an excellent fit to the CMB data. However, a statistically significant tension emerges when its determination of the Hubble constant is compared to…
Axi-Higgs Cosmology
Leo WH Fung, Lingfeng Li, Tao Liu +3
If the electroweak Higgs vacuum expectation value in early universe is higher than its present value GeV, the Li puzzle in BBN and the CMB/CDM tens…
Wave Dark Matter and Ultra Diffuse Galaxies
Alvaro Pozo, Tom Broadhurst, Ivan De Martino +4
Dark matter as a Bose-Einstein condensate, such as the axionic scalar field particles of String Theory, can explain the coldness of dark matter on large scales. Pioneering simulati…
Ghostly Galaxies as Solitons of Bose-Einstein Dark Matter
Tom Broadhurst, Ivan de Martino, Hoang Nhan Luu +2
The large dark cores of common dwarf galaxies are unexplained by the standard heavy particle interpretation of dark matter. This puzzle is exacerbated by the discovery of a very la…
Multiple Ultralight Axionic Wave Dark Matter and Astronomical Structures
Hoang Nhan Luu, S. -H. Henry Tye, Tom Broadhurst
An ultralight scalar boson with mass eV is gaining credence as a Dark Matter (DM) candidate that explains the dark cores of dwarf galaxies as soliton waves. S…
A Soliton Solution for the Central Dark Masses in 47- Tuc Globular Cluster and Implications for the Axiverse
Razieh Emami, Tom Broadhurst, George Smoot +2
We offer a standing wave explanation for the rising proper motions of stars at the center of the globular cluster 47-Tucanae, amounting to of the total mass. We sho…