Florian NiedermannPostdoc
About me
I received my PhD from the Ludwig Maximilian University of Munich in 2016. After that, I held a postdoc position at the University of Nottingham before moving to the Centre for Cosmology and Particle Physics Phenomenology in Denmark in 2018. I joined Nordita in 2020 as a fellow in cosmology and became junior faculty as an assistant professor in 2022 after winning a starting grant from the Swedish Research Council.
Research
My research interest lies at the crossroads between particle physics and cosmology. In my past research, I explored the phenomenology and theoretical consistency of braneworld models, which describe our Universe as a hypersurface in a higher dimensional spacetime. I also worked on gravitational approaches to address the cosmological constant or electroweak hierarchy problem and employed effective field theories for dark energy model building. Recently, I have been interested in low-energy phase transitions that take place in the dark sector during the CMB epoch. They constitute a phenomenologically promising framework to address recently found tensions in cosmological datasets while providing a theoretically consistent playground to address particle physics challenges such as the neutrino mass generation or the origin of the dark sector. At the same time, their unique signatures can be searched for in collider experiments, the CMB power spectra, the large-scale structure of our Universe and gravitational waves.
Currently, I have active collaborations with scientists in Stockholm, Denmark (Odense and Aarhus), Nottingham, and Munich.
My publications can be found here.
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