ADMX-SIDETRAC: A quantum-enhanced two-cavity haloscope for improving high-mass axion detection
ORAL
Abstract
Axions are a wave-like dark matter candidate that can be detected with a cavity haloscope. The sensitivity of a haloscope significantly decreases at higher axion masses due to decreasing cavity volume, increasing thermal noise, and degradation of the cavity quality factor. Multi-cavity haloscopes can mitigate this partially, but this increases the instrument's operational complexity. ADMX-SIDETRAC is an R&D multi-cavity haloscope sited at PNNL poised to solve these issues by jointly exploring several emerging technologies. It consists of two cavities operating in a 14T magnet targeting axions near 6 GHz. AI/ML controls may simplify and optimize the operations of the multi-cavity system. Magnetic-field-tolerant KITWPAs may enable amplification with low magnetic shielding. A qubit photon-counting readout could evade the standard quantum noise limit. Ongoing developments of this haloscope are discussed.
*This work is supported by U.S. Department of Energy through Awards No.DE-SC0009800,No.DE-SC0009723,No.DE-SC0010296,No.DE-SC0010280,No.DE-SC0011665,No.DEFG02-97ER41029,No.DE-FG02-96ER40956,No.DE-AC52-07NA27344,No.DE-C03-76SF00098,No.DE-SC-0022148,No.DE-SC0017987 and others. PNNL is a multi-program national laboratory operated for the U.S. DOE by Battelle Memorial Institute under Contract No.DE-AC05-76RL01830. CRB is supported by DOE Office of Science HEP Early Career Award FWP77794.
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Presenters
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Thomas Braine
- Pacific Northwest National Laboratory