Results 251 to 260 of about 4,163 (286)
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NONEQUILIBRIUM PHASE TRANSITIONS IN THE EARLY UNIVERSE
Particles and the Universe, 2004We review the current issues of nonequilibrium phase transitions, in particular, in the early Universe. Phase transitions cannot maintain thermal equilibrium and become nonequilibrium when the thermal relaxation time scale is bigger than the dynamical time scale.
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Phase transitions in the early and the present Universe: from the big bang to heavy ion collisions ∗
, 2001In these lectures I discuss cosmological phase transitions with the goal of establishing the possibility of observational consequences. I argue that the only phase transition amenable of experimental study within the foreseeable future is that predicted ...
D. Boyanovsky
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Modeling a delayed phase transition in the early universe
Journal of Physics G: Nuclear and Particle Physics, 2014We use an effective field-theoretical model to describe a QCD-type phase transition in the early universe. It is assumed that the formation of a new phase proceeds via supercooling and thermal activation. A subsequent rolling-down process is characterized by a microscopic time scale of a few .
Daniel Yueker +2 more
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E-mode Polarization Phase Transitions Reveal a Fundamental Parameter of the Universe
IPI LettersRecent improvements in CMB data quality and analysis techniques have revealed subtle but significant discrete phase transitions in the E-mode polarization spectrum, initiated by Thomson scattering reaching the holographic entropy bound at multipole ℓ1 ...
Bryce Weiner
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Dynamical Theory of Phase Transitions and Topological Defect Formation in the Early Universe
, 2004We review the current issues of nonequilibrium phase transitions, in particular, in the early universe. Phase transitions cannot maintain thermal equilibrium and become nonequilibrium when the thermal relaxation time scale is greater than the dynamical ...
Sang Pyo Kim
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Hubble-induced phase transitions in the Standard Model and beyond
Proceedings of Proceedings of the Corfu Summer Institute 2024 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2024)We review the dynamics of spectator scalar fields non-minimally coupled to gravity in the post-inflationary Universe, with particular emphasis on scenarios where the end of inflation is followed by a period of kination.
Javier Rubio, Giorgio Laverda
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Entropy generation and phase transitions in the early universe
Chinese Astronomy and Astrophysics, 1981Abstract The baryon asymmetry in the universe may have been caused by the B, C, CP non-conserving interactions of the grand unified field theory. In this theory, there must exist spontaneous symmetry breaking which explains the CP nonconservation etc; that is there must have been Higgs phase transations in the early universe. I wish to point out that
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Probing the early universe with future GW observatories
Journal of Cosmology and Astroparticle PhysicsOne of the fundamental characteristics of slow roll inflation is its generation of tensor perturbations, which manifest as stochastic gravitational waves (GWs).
Suvashis Maity, Md Riajul Haque
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