Speaker
Description
The DarkQuantum project aims to boost the sensitivity and mass reach of axion dark matter searches by embedding quantum sensing technologies into two haloscope implementations. A low-frequency setup, targeting the sub-GHz range, will operate inside a large-bore superconducting magnet and read out by a quantum-limited amplifier chain operating near the standard quantum limit at millikelvin temperatures. A high-frequency setup, targeting the multi-GHz range, will employ a qubit-based single-photon counter together with improved cavity coatings and novel frequency-tuning techniques. The project brings together expertise in axion phenomenology, superconducting quantum circuits, large-scale cryogenics, and RF engineering across multiple institutes. The low-frequency setup will be hosted inside the BabyIAXO magnet, part of Hamburg's axion hub — a collection of dark-sector experiments that forms a core pillar of the recently renewed Cluster of Excellence "Quantum Universe" at DESY and Universität Hamburg.
I will present the project's physics case, the architecture of both haloscopes, and the current status of ongoing work, with emphasis on the exciting possibility of near-term competitive results using intermediate-sized prototypes in the 1 to 2 μeV range at CERN.
| Primary Abstract Topic | Experiment: Axions and Wave-Like-DM |
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