409 citations · 1.5k across the 23 of their papers we have counts for
23 papers
The Cryogenic System of DMRadio-50L
V. Ankel, C. Bartram, J. Begin +36
The DMRadio-50L experiment is designed to search for axion dark matter in the 5 kHz - 5 MHz frequency range using a lumped-element LC resonator and a toroidal magnet and to serve a…
DMRadio-Core: A new approach for GUT-scale axion searches
V. Ankel, C. Bartram, J. Begin +33
Searches for QCD axions with masses in the neV/ mass range are strongly motivated by new physics at the GUT scale and by well-motivated pre-inflationary axion symmetry breakin…
Search for Dark Photons between 16.96--19.52 eV with the HAYSTAC Experiment
Xiran Bai, A. Droster, J. Echevers +21
We report dark photon results from HAYSTAC Phase II using data from previously reported axion searches. Additionally, we present an analysis of an unpublished dataset covering a re…
Noise limits for dc SQUID readout of high- resonators below 300 MHz
V. Ankel, C. Bartram, J. Begin +38
We present the limits on noise for the readout of cryogenic high- resonators using dc Superconducting Quantum Interference Devices (SQUIDs) below 300 MHz. This analysis uses rea…
Dark Matter Axion Search with HAYSTAC Phase II
HAYSTAC Collaboration, Xiran Bai, M. J. Jewell +22
This Letter reports new results from the HAYSTAC experiment's search for dark matter axions in our galactic halo. It represents the widest search to date that utilizes squeezing to…
Electromagnetic modeling and science reach of DMRadio-m
DMRadio Collaboration, A. AlShirawi, V. Ankel +45
DMRadio-m is an experiment that is designed to be sensitive to KSVZ and DFSZ QCD axion models in the 10--200\,MHz (41 neV -- 0.83 eV/) range. The experiment uses…
New Results from HAYSTAC's Phase II Operation with a Squeezed State Receiver
HAYSTAC Collaboration, M. J. Jewell, A. F. Leder +26
A search for dark matter axions with masses has been performed using the HAYSTAC experiment's squeezed state receiver to achieve sub-quantum limited noise. This rep…
Status of DMRadio-50L and DMRadio-m
Nicholas M. Rapidis
Recent theoretical advancements have made the QCD axion a stronger dark matter candidate, especially in the sub- range. While cavity haloscopes have made significant pr…
Quantum metrology of low frequency electromagnetic modes with frequency upconverters
Stephen E. Kuenstner, Elizabeth C. van Assendelft, Saptarshi Chaudhuri +11
We present the RF Quantum Upconverter (RQU) and describe its application to quantum metrology of electromagnetic modes between dc and the Very High Frequency band (VHF) (…
Projected Sensitivity of DMRadio-m: A Search for the QCD Axion Below eV
DMRadio Collaboration, L. Brouwer, S. Chaudhuri +31
The QCD axion is one of the most compelling candidates to explain the dark matter abundance of the universe. With its extremely small mass (), axion dark ma…
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…
Introducing DMRadio-GUT, a search for GUT-scale QCD axions
L. Brouwer, S. Chaudhuri, H. -M. Cho +29
The QCD axion is a leading dark matter candidate that emerges as part of the solution to the strong CP problem in the Standard Model. The coupling of the axion to photons is the mo…
Axion Dark Matter
C. B. Adams, N. Aggarwal, A. Agrawal +152
Axions are well-motivated dark matter candidates with simple cosmological production mechanisms. They were originally introduced to solve the strong CP problem, but also arise in a…
A Model-Independent Radio Telescope Dark Matter Search in the L and S Bands
Aya Keller, Nicole Wolff, Karl van Bibber
Ultralight bosonic dark matter in its most general form can be detected through its decay or annihilation to a quasimonochromatic radio line. Assuming only that this line is consis…
A quantum-enhanced search for dark matter axions
K. M. Backes, D. A. Palken, S. Al Kenany +21
In dark matter axion searches, quantum uncertainty manifests as a fundamental noise source, limiting the measurement of the quadrature observables used for detection. We use vacuum…
Resonant Conversion of Dark Matter Oscillons in Pulsar Magnetospheres
Anirudh Prabhu, Nicholas M. Rapidis
Due to their high magnetic fields and plasma densities, pulsars provide excellent laboratories for tests of beyond Standard Model (BSM) physics. When axions or axion-like particles…
An improved analysis framework for axion dark matter searches
D. A. Palken, B. M. Brubaker, M. Malnou +17
In experiments searching for axionic dark matter, the use of the standard threshold-based data analysis discards valuable information. We present a Bayesian analysis framework that…
Completion of Phase I and Preparation for Phase II of the HAYSTAC Experiment
Nicholas M. Rapidis
The HAYSTAC experiment utilizes a tunable resonant microwave cavity to search for dark matter axions. We report on the system and the results from Phase I of the experiment. This p…
Characterization of the HAYSTAC axion dark matter search cavity using microwave measurement and simulation techniques
Nicholas M. Rapidis, Samantha M. Lewis, Karl A. van Bibber
Many searches for axion cold dark matter rely on the use of tunable electromagnetic resonators. Current detectors operate at or near microwave frequencies and use cylindrical cavit…
Results from phase 1 of the HAYSTAC microwave cavity axion experiment
L. Zhong, S. Al Kenany, K. M. Backes +18
We report on the results from a search for dark matter axions with the HAYSTAC experiment using a microwave cavity detector at frequencies between 5.6-5.8. We exclude a…
Application of the Bead Perturbation Technique to a Study of a Tunable 5 GHz Annular Cavity
N. M. Rapidis
Microwave cavities for a Sikivie-type axion search are subject to several constraints. In the fabrication and operation of such cavities, often used at frequencies where the resona…
Design and Operational Experience of a Microwave Cavity Axion Detector for the 20-100 micro-eV Range
S. Al Kenany, M. A. Anil, K. M. Backes +17
We describe a dark matter axion detector designed, constructed, and operated both as an innovation platform for new cavity and amplifier technologies and as a data pathfinder in th…
First results from a microwave cavity axion search at 24 micro-eV
B. M. Brubaker, L. Zhong, Y. V. Gurevich +17
We report on the first results from a new microwave cavity search for dark matter axions with masses above . We exclude axion models with two-photon coupling $g_{aγγ…