Speaker
Description
The Superconducting Quantum Materials and Systems Center (SQMS) recently conducted a Dark Photon Dark Matter search in the 4.5 GHz to 7.1 GHz range using a widely-tunable superconducting haloscope. I will present the cavity design and characterization, analyze the impact of microphonics on system performance and haloscope sensitivity, and describe our tuning methodology for this Q~10^8 cavity. The presentation will cover our haloscope analysis approach and discuss exclusions achieved in this frequency range. I will outline lessons learned from this first search, implications for future axion searches, and proposed improvements for subsequent SERAPH experiments.
Finally, I will first discuss efforts to implement an itinerant photon counter to subvert the Standard Quantum Limit noise and increase the haloscope scan rate by potentially orders of magnitude.
| Primary Abstract Topic | Experiment: Axions and Wave-Like-DM |
|---|