489 citations · 10.1k across the 151 of their papers we have counts for
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The cosmic QCD transition for large lepton flavour asymmetries
Mandy M. Middeldorf-Wygas, Isabel M. Oldengott, Dietrich Bödeker +1
We study the impact of large lepton flavour asymmetries on the cosmic QCD transition. Scenarios of unequal lepton flavour asymmetries are observationally almost unconstrained and t…
Geometric optics in the presence of axion-like particles in curved space-time
Dominik J. Schwarz, Jishnu Goswami, Aritra Basu
We present a concise derivation of geometric optics in the presence of axionic fields in a curved space-time. Whenever light can be described via geometric optics (the eikonal appr…
Cosmic QCD Epoch at Nonvanishing Lepton Asymmetry
Mandy M. Wygas, Isabel M. Oldengott, Dietrich Bodeker +1
We investigate how a lepton asymmetry impacts the cosmic trajectory in the QCD phase diagram. We study the evolution of chemical potentials during the QCD epoch of the early Univer…
First second of leptons
Dominik J. Schwarz, Glenn D. Starkman, Maik Stuke
A poorly constrained parameter in the Standard Model of Cosmology is the lepton asymmetry l = \sum_f l_f=\sum_f(n_f+n_{ν_f})/s. Each flavour asymmetry l_f with f=e, μ, τ is the sum…
Large-Scale Suppression from Stochastic Inflation
Florian Kuhnel, Dominik J. Schwarz
We show non-perturbatively that the power spectrum of a self-interacting scalar field in de Sitter space-time is strongly suppressed on large scales. The cut-off scale depends on t…
Just enough inflation
Dominik J. Schwarz, Erandy Ramirez
We propose a version of chaotic inflation, in which a fundamental scale M, well below the Planck scale M_P, fixes the initial value of the effective potential. If this scale happen…