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Phase Transitions in the Early Universe and Defect Formation
, 2003 In the first one of these two lectures, I give an introductory review of phase transitions in finite temperature field theories. I highlight the differences between theories with global and local symmetries, and the similarities between cosmological phase transitions and phase transitions in superconductors.
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The quark-hadron phase transition in the early universe
Physics Letters B, 1982 By using perturbative QCD with bag corrections for quark-gluon plasma and a resonance gas model for hadronic matter, we study the effect of the phase transition on the cooling rate of the early universe.
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Gravity: The First Phase Transition in the Early Universe
This work proposes that gravity originates from the earliest first-order phase transition in the universe. In this framework, the metric emerges as a consequence of the order parameter acquiring a non‑zero value, and gravity is interpreted not as a fundamental interaction but as a geometric degree of freedom liberated by the phase ...
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Anisotropic to Isotropic Phase Transitions in the Early Universe
, 2012 We propose that the early Universe was not Lorentz symmetric and that a gradual transition to the Lorentz symmetric phase occurred. An underlying form of the Dirac equation hints to such a transition for fermions. Fermions were coupled to space-time in a non-trivial manner such that they were massless in the Lorentz violating phase.
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Quark-Hadron Phase Transition in the Early Universe
Quark-Hadron Phase Transition in the Early Universeidentifier:oai:t2r2.star.titech.ac.jp ...
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Phase transitions in the early universe
La Rivista Del Nuovo Cimento Series 3, 1986On passe en revue les resultats recents obtenus dans les principaux domaines ou la recherche cosmologique et la physique des interactions fondamentales se ...
S. A. Bonometto, A. Masiero
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Phase transitions and formation of bubbles in the early Universe
Physical Review D, 1992We analyze the bubble-formation process that occurs when there is phase coexistence in the early Universe. In this paper we stress the relevance of determining the surface tension in order to compute some quantities that are relevent to cosmology such as the number density of bubbles, the contrast density, and the most probable sizes of bubbles ...
, Marques, , Ramos
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Invisible axions and the QCD phase transition in the early Universe
Physical Review D, 1986We examine, in detail, the conditions under which the quark-hadron phase transition in the early Universe can influence the previously determined upper bound on the axion decay constant f/sub a/< or approx. =5 x 10/sup 12/ GeV. By integrating the axion equation of motion (in general and in a specific model) through the phase transition we find that if ...
, DeGrand, , Kephart, , Weiler
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An analytic model for phase transitions in the early Universe
Astronomische Nachrichten, 1985AbstractA simplified model of the very early Universe is presented for studying the effects of the GUT phase transition on the cosmic evolution and vice versa. An exact description of a strongly first order phase transition is given. Both inflationary and non‐inflationray solutions are obtained.
L. Diósi +3 more
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EARLY-UNIVERSE PHASE TRANSITIONS AND YANG–MILLS THEORIES
Modern Physics Letters A, 2003Our universe expands and cools. The electroweak (EW) phase transition, which endows masses to the various particles, and QCD phase transition, which gives rise to confinement of quarks and gluons within hadrons in the true QCD vacuum, would presumably have taken place in the early universe, respectively, at around 10-11 s and at a time between 10-5 s ...
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