540 citations · 2.4k across the 44 of their papers we have counts for
4 papers · 1 filter
Hot New Early Dark Energy
Florian Niedermann, Martin S. Sloth
New early dark energy (NEDE) makes the cosmic microwave background consistent with a higher value of the Hubble constant inferred from supernovae observations. It is an improvement…
Hot New Early Dark Energy: Towards a Unified Dark Sector of Neutrinos, Dark Energy and Dark Matter
Florian Niedermann, Martin S. Sloth
Hot new early dark energy describes a supercooled, first-order phase transition that takes place at sub-eV temperatures in the dark sector. It lowers the sound horizon, which provi…
Generalised scalar-tensor theories and self-tuning
Edmund J. Copeland, Sukhraj Ghataore, Florian Niedermann +1
We explore a family of generalised scalar-tensor theories that exhibit self-tuning to low scale anti de Sitter vacua, even in the presence of a large cosmological constant. We are…
Perturbative quantum consistency near black-hole horizon formation
Stefan Hofmann, Maximilian Koegler, Florian Niedermann
We study the prelude to black-hole formation using a suspended shell composed of physical matter that fulfills the dominant energy condition. Here, the collapse of the shell is bro…