34 citations · 350 across the 41 of their papers we have counts for
9 papers · 1 filter
Precision Multi-Mode Microwave Spectroscopy of Paramagnetic and Rare-Earth Ion Spin Defects in Single Crystal Calcium Tungstate
Elrina Hartman, Michael E Tobar, Ben T McAllister +2
We present experimental observations of dilute ion spin ensemble defects in a low-loss single crystal cylindrical sample of CaWO cooled to mK in temperature. Crystal field…
Non-Virialized Axion Search Sensitive to Doppler Effects in the Milky Way Halo
C. Bartram, T. Braine, R. Cervantes +53
The Axion Dark Matter eXperiment (ADMX) has previously excluded Dine-Fischler-Srednicki-Zhitnisky (DFSZ) axions between 680-790 MHz under the assumption that the dark matter is des…
The Multi-mode Acoustic Gravitational Wave Experiment: MAGE
William M. Campbell, Maxim Goryachev, Michael E. Tobar
The Multi-mode Acoustic Gravitational wave Experiment (MAGE) is a high frequency gravitational wave detection experiment. In its first stage, the experiment features two near-ident…
Searching for GUT-scale QCD Axions and Monopoles with a High Voltage Capacitor
Michael E. Tobar, Anton V. Sokolov, Andreas Ringwald +1
The QCD axion has been postulated to exist because it solves the strong CP problem. Furthermore, if it exists axions should be created in the early Universe and could account for a…
Optomechanical dark matter instrument for direct detection
Christopher G. Baker, Warwick P. Bowen, Peter Cox +3
We propose the Optomechanical Dark-matter INstrument (ODIN), based on a new method for the direct detection of low-mass dark matter. We consider dark matter interacting with superf…
Improved constraints on minimum length models with a macroscopic low loss phonon cavity
William M. Campbell, Michael E. Tobar, Serge Galliou +1
Many theories that attempt to formulate a quantum description of gravity suggest the existence of a fundamental minimum length scale. A popular method for incorporating this minimu…