130 citations · 934 across the 27 of their papers we have counts for
Showing 2019 · hep-phShow all
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hep-ph2019★ 78 cited
Thermal History of the Early Universe and Primordial Gravitational Waves from Induced Scalar Perturbations
Fazlollah Hajkarim, Jürgen Schaffner-Bielich
We study the induced primordial gravitational waves (GW) coming from the effect of scalar perturbation on the tensor perturbation at the second order of cosmological perturbation t…
hep-ph2019★ 19 cited
Effects of the QCD Equation of State and Lepton Asymmetry on Primordial Gravitational Waves
Fazlollah Hajkarim, Jürgen Schaffner-Bielich, Stephan Wystub +1
Using the quantum chromodynamics (QCD) equation of state (EoS) from lattice calculations we investigate effects from QCD on primordial gravitational waves (PGWs) produced during th…