94 citations · 249 across the 7 of their papers we have counts for
8 papers
A little inflation at the cosmological QCD phase transition
Tillmann Boeckel, Jürgen Schaffner-Bielich
We reexamine the recently proposed "little inflation" scenario that allows for a strong first order phase-transition of QCD at non-negligible baryon number in the early universe an…
Self-interacting Dark Matter Energy Density
Rainer Stiele, Tillmann Boeckel, Jurgen Schaffner-Bielich
We investigate cosmological implications of an energy density contribution arising by elastic dark matter self-interactions. Its scaling behaviour shows that it can be the dominant…
The Cosmological QCD Phase Transition Revisited
Simon Schettler, Tillmann Boeckel, Jurgen Schaffner-Bielich
The QCD phase diagram might exhibit a first order phase transition for large baryochemical potentials. We explore the cosmological implications of such a QCD phase transition in th…
Imprints of the QCD Phase Transition on the Spectrum of Gravitational Waves
Simon Schettler, Tillmann Boeckel, Jurgen Schaffner-Bielich
We have investigated effects of the QCD phase transition on the relic GW spectrum applying several equations of state for the strongly interacting matter: Besides the bag model, wh…
Cosmological implications of a Dark Matter self-interaction energy density
Rainer Stiele, Tillmann Boeckel, Jürgen Schaffner-Bielich
We investigate cosmological constraints on an energy density contribution of elastic dark matter self-interactions characterized by the mass of the exchange particle and coupling c…
Strangeness in Astrophysics and Cosmology
Tillmann Boeckel, Matthias Hempel, Irina Sagert +3
Some recent developments concerning the role of strange quark matter for astrophysical systems and the QCD phase transition in the early universe are addressed. Causality constrain…