Projects per year
Abstract
We present new results of a room temperature resonant AC haloscope, which searches for axions via photon upconversion. Traditional haloscopes require a strong applied DC magnetic background field surrounding the haloscope cavity resonator, the resonant frequency of which is limited by available bore dimensions. UPLOAD, the upconversion low-noise oscillator axion detection experiment, replaces this DC magnet with a second microwave background resonance within the detector cavity, which up-converts energy from the axion field into the readout mode, accessing axions around the beat frequency of the modes. Furthermore, unlike the DC case, the experiment is sensitive to a newly proposed quantum electromagnetodynamical axion coupling term gaBB. Two experimental approaches are outlined - one using frequency metrology and the other using power detection of a thermal readout mode. The results of the power detection experiment are presented, which allows exclusion of axions of masses between 1.12-1.20 μeV above a coupling strength of both gaγγ and gaBB at 3×10-6 1/GeV, after a measurement period of 30 days, which is an improvement of 3 orders of magnitude over our previous result.
Original language | English |
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Article number | 112003 |
Journal | Physical Review D |
Volume | 107 |
Issue number | 11 |
DOIs | |
Publication status | Published - 1 Jun 2023 |
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Centre of Excellence for Dark Matter Particle Physics
Barberio, E. (Investigator 01), Williams, A. (Investigator 02), Bell, N. (Investigator 03), Stuchbery, A. (Investigator 04), Tobar, M. (Investigator 05), Boehm, C. (Investigator 06) & Wallner, A. (Investigator 07)
ARC Australian Research Council
1/01/20 → 31/12/26
Project: Research
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Wideband Tuneable Low Phase Noise Oscillators for 5G
Tobar, M. (Investigator 01), Goryachev, M. (Investigator 02) & Ivanov, E. (Investigator 03)
ARC Centre of Excellence for Engineered Quantum Systems
1/01/21 → 31/12/21
Project: Research
Research output
- 6 Citations
- 1 Doctoral Thesis
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Techniques to search for WISP and WIMP dark matter using frequency metrology
Thomson, C., 2023, (Unpublished)Research output: Thesis › Doctoral Thesis
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