Results 1 to 10 of about 70 (61)
Phase transitions in the early universe [PDF]
SciPost Physics Lecture Notes, 2021 These lecture notes are based on a course given by Mark Hindmarsh at the 24th Saalburg Summer School 2018 and written up by Marvin Lüben, Johannes Lumma and Martin Pauly. The aim is to provide the necessary basics to understand first-order phase transitions in the early universe, to outline how they leave imprints in gravitational waves, and advertise
Mark Hindmarsh, Hindmarsh Mark
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Phase Transitions in the Early and Present Universe [PDF]
Annual Review of Nuclear and Particle Science, 2006 ▪ Abstract The evolution of the universe is the ultimate laboratory for studying fundamental physics across energy scales that span approximately 25 orders of magnitude. The standard models of cosmology and particle physics provide the basic understanding of the early and present universe and predict a series of phase transitions that occurred in ...
D Boyanovsky, H J De Vega
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Universal early warning signals of phase transitions in climate systems
Journal of the Royal Society Interface, 2023 The potential for complex systems to exhibit tipping points in which an equilibrium state undergoes a sudden and often irreversible shift is well established, but prediction of these events using standard forecast modelling techniques is quite difficult. This has led to the development of an alternative suite of methods that seek to identify signatures
Daniel Dylewsky +2 more
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Electroweak Phase Transition in the Early Universe? [PDF]
, 1998 Updated version, to appear in the Proceedings of the International School of Astrophysics 'D.
Bergerhoff, Bastian, Wetterich, Christof
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Phase transitions in the early universe
, 2022 Peer ...
Hindmarsh, Mark +3 more
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ASTROPHYSICAL OBSERVATIONS OF EARLY UNIVERSE PHASE TRANSITIONS [PDF]
Modern Physics Letters A, 2004 After a review of CMBR correlations and recent observations, a study of possible CMBR observations of the QCD early universe phase transition is discussed. A model for the QCD bubble walls gives the surface tension found in lattice calculations, and a 1+1 dimensional treatment in this model for bubble collisions shows an interior gluonic wall, a disk ...
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SUPERCOOLING AND NUCLEATION IN PHASE TRANSITIONS OF THE EARLY UNIVERSE [PDF]
Modern Physics Letters A, 1996 The three phase transitions (the GUT, the electroweak and the quark-hadron), which the universe is assumed to have undergone, produce very important physical effects if they are assumed to be of first-order. It is also important that enough supercooling is produced at these transitions so that the rate of nucleation of the lower temperature phase out ...
Banerjee, B., Gavai, R. V.
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A Little Inflation in the Early Universe at the QCD Phase Transition [PDF]
Physical Review Letters, 2010 We explore a scenario that allows for a strong first order phase-transition of QCD at non-negligible baryon number in the early universe and its possible cosmological observable consequences. The main assumption is a quasi-stable QCD-vacuum state that leads to a short period of inflation, consequently diluting the net baryon to photon ratio to it's ...
Boeckel, Tillmann +1 more
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Phase transitions in the early universe
, 2023 Phase transitions are a generic prediction of models in particle physics. In the Standard Model, for example, there are two phase transitions: the QCD confinement transition and the electroweak phase transition, both occurring in the very early stages of the universe. Many extensions to the Standard Model predict new phase transitions, all occurring at
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Dark radiation as a probe for a phase transition in the early Universe
Physical Review D, 2022 The cosmological constant is not necessarily small in the early universe. If a scalar field obtains a vacuum expectation value after a phase transition (PT), a possibly large cosmological constant could present before PT. The early cosmological constant (ECC) and the PT process may be detectable from dark radiation (DR) today, such as in the cosmic ...
Zihang Wang, Lijing Shao
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