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Florian Niedermann

Nordita Assistant Professor
Field of research:
Gravitation and Cosmology
Postal address
AlbaNova Univ. Center
Florian Niedermann
Hannes Alfvéns väg 12
SE-106 91 Stockholm


Florian Niedermann received his PhD from the Ludwig Maximilian University of Munich in 2016. He then held a postdoc position at the University of Nottingham until 2018 and one at the Centre for Cosmology and Particle Physics Phenomenology in Denmark until 2020. He joined Nordita in the same year as a fellow in cosmology before he became a Nordita Assistant Professor in 2022 after winning a starting grant from the Swedish Research Council.

Florian’s research interest sits at the crossroads between particle physics and cosmology. In his past research, he explored the phenomenology and theoretical consistency of braneworld models, which describe our Universe as a hypersurface in a higher dimensional spacetime. He also worked on gravitational approaches to address the cosmological constant or electroweak hierarchy problem and employed effective field theories for dark energy model building. Most recently, he has 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 data sets 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, Florian has active collaborations with scientists in Stockholm, Denmark (Odense and Aarhus), Nottingham, and Munich.

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