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Daniel Unger

QUP Postdoctoral Fellow

e-maildaniel.unger-at-kek.jp

As an experimental physicist, I specialize in the development and application of low-temperature detectors for precision measurements in fundamental physics. I earned my Ph.D. from Heidelberg University, where my research focused on high-resolution X-ray spectroscopy of light muonic atoms to determine their absolute nuclear charge radii. I joined QUP to work across disciplines and contribute to the next-generation quantum-field measurement systems.

Research Content

My research focused on Metallic Magnetic Calorimeters (MMCs) and the detector development. This included the simulation, design, fabrication, and characterization of MMC-based detector arrays, as well as their experimental application and data analysis. We determined low-lying muonic X-ray transitions with unprecedented accuracy.

For my research at QUP, we are developing and applying Transition-Edge Sensors (TES) for high-resolution X-ray spectroscopy of exotic atoms. Through these measurements, we probe Quantum Electrodynamics (QED) with extreme sensitivity and ultimately search for new physics.

Related Research Results

https://doi.org/10.11588/heidok.00037515

https://doi.org/10.1007/s10909-024-03141-x

Website

https://orcid.org/0009-0008-8204-9145

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