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Perturbations in an Expanding Universe of Free Particles
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This article is published in The Astrophysical Journal.The article was published on 1972-09-01. It has received 10 citations till now. The article focuses on the topics: Big Rip & Particle horizon.read more
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Signatures of relativistic neutrinos in CMB anisotropy and matter clustering
Sergei Bashinsky,Uroš Seljak +1 more
TL;DR: In this article, a detailed analytical study of ultrarelativistic neutrinos in cosmological perturbation theory and of the observable signatures of inhomogeneities in the cosmic neutrino background is presented.
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Relativistic cosmology and large-scale structure
TL;DR: In this article, a review of general-relativistic dynamics and perturbations of the standard cosmological model, the Friedmann-Lemaitre universe, and how these can explain and predict the properties of the observable universe is presented.
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Advances in perturbative thermal field theory
Ulrike Kraemmer,Anton Rebhan +1 more
TL;DR: The progress in the last decade in perturbative quantum field theory at high temperatures and densities, made possible by the use of effective field theories and hard thermal/dense loop resummations in ultrarelativistic gauge theories, is reviewed in this paper.
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A tale of two modes: Neutrino free-streaming in the early universe
TL;DR: In this paper, the free-streaming nature of cosmological neutrinos from cosmic microwave background (CMB) power spectra, baryonic acoustic oscillation data, and local measurements of the Hubble constant was investigated.
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Analytical solutions for cosmological perturbations with relativistic collisionless matter
TL;DR: In this paper, the authors derived exact analytical solutions for scalar, vector, and tensor perturbations in the general case of a two-component system containing a perfect radiation fluid and relativistic collisionless matter.