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early universe

Is the Cosmological Constant, a “Vacuum” Field? We Explore This by Squeezing Early Universe “Coherent Semi Classical States”, and Compare This to Energy from the Early Universe Heisenberg Uncertainty Principle

Is the Cosmological Constant, a “Vacuum” Field? We Explore This by Squeezing Early Universe “Coherent Semi Classical States”, and Compare This to Energy from the Early Universe Heisenberg Uncertainty Principle

... of early universe vacuum fields, and if this initial vacuum field corresponds to a configuration of early universe space-time at the start of ...

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Neutrinos in the Early Universe, Kalb-Ramond Torsion and Matter-Antimatter Asymmetry

Neutrinos in the Early Universe, Kalb-Ramond Torsion and Matter-Antimatter Asymmetry

... the early universe that violate Lorentz ...string universe is assumed to undergo a phase transition at a given temperature, at which the back- ground KR axion field vanishes (or is diminished ...

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On the Origin of the Gamma Ray Burst  Redshift Distribution in the Early Universe

On the Origin of the Gamma Ray Burst Redshift Distribution in the Early Universe

... Gamma-ray bursts are extremely energetic explosions that hold great promise as cosmological probes of the early universe [1]. They were serendipitously discovered by the Vela satellites in the 1960s [2], ...

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A Molecular Hydrogen Production Model from Li and LiH in the Early Universe

A Molecular Hydrogen Production Model from Li and LiH in the Early Universe

... The kinetic model applied to the molecular hydrogen production comprise a collisional process scheme of two consecutive reactions between H and Li atoms in the first event and between H and LiH in the second one, all ...

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Observations of intergalactic heavy-element enrichment in the early universe

Observations of intergalactic heavy-element enrichment in the early universe

... of early interactions between galaxies and intergalactic ...the early universe, signifying that the chemical feedback from early star formation was much more efficient than it is ...local ...

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Several Routes to Determining Entropy Generation in the Early Universe

Several Routes to Determining Entropy Generation in the Early Universe

... We wish to present two alternative routes to generation of entropy. One is strictly a semi classical argument, linked to the exponential of early universe entropy being proportional to the spatial integral ...

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Chameleons in the early universe: kicks, rebounds, and particle production

Chameleons in the early universe: kicks, rebounds, and particle production

... the early Universe, when the trace of the matter stress-energy tensor is nearly zero, the chameleon is very light, and Hubble friction prevents it from reaching the minimum of its effective ...

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Evolution of Primordial Dark Matter Planets in the Early Universe

Evolution of Primordial Dark Matter Planets in the Early Universe

... In the above paper we had tabulated a wide range of masses and corresponding radii of such DM planets with an upper limit of Neptune mass all the way down to asteroid mass. Moreover in Sivaram et al. (2016), we had ...

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Symmetry Breaking and the Structure Formation of the Expanded Early Universe

Symmetry Breaking and the Structure Formation of the Expanded Early Universe

... the early universe, an invisible force field called the ‘Higgs field’ came into play throughout the cosmos in addition to ‘Higgs ...the universe and which in turn is associated with the Higgs boson ...

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Gedanken Experiment for Degree of Flatness, or Lack of, in Early Universe Conditions

Gedanken Experiment for Degree of Flatness, or Lack of, in Early Universe Conditions

... This document will from first principles delineate the degree of flatness, or deviations from, in early universe models. We will, afterwards, make comparison with recent results we have looked at concerning ...

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Supermassive Black Holes, the Early Universe, and Gamma Ray Bursts

Supermassive Black Holes, the Early Universe, and Gamma Ray Bursts

... the early universe remains one of the most controversial subjects in ...the universe was between 800 million to 950 million years old ...the early universe ...

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A new paradigm for the dynamics of the early Universe

A new paradigm for the dynamics of the early Universe

... the Universe is best formulated in terms of a series of successive approximations based on a viable cosmography derived from current observations with a minimum number of phenomenological constraints on the ...

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Turbulence of weak gravitational waves in the early universe

Turbulence of weak gravitational waves in the early universe

... (Received 17 October 2016; revised manuscript received 13 October 2017; published 28 November 2017) We study the statistical properties of an ensemble of weak gravitational waves interacting nonlinearly in a flat ...

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Early Universe and Evolution of the Present Universe: Exact Solution Models

Early Universe and Evolution of the Present Universe: Exact Solution Models

... the universe by linking the variation of G with that of the cosmological constant Λ leaving the form of the field equations un- changed and preserving the conservation of the energy- momentum tensor of the matter ...

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How Does a Setting of the Vacuum Energy Density, as Given Today, Lead to an Initial Hubble Radius for the Early Universe, i e  How Does the Early Universe Partly Mimic a Black Hole?

How Does a Setting of the Vacuum Energy Density, as Given Today, Lead to an Initial Hubble Radius for the Early Universe, i e How Does the Early Universe Partly Mimic a Black Hole?

... the Early Un- iverse, i.e. How Does the Early Universe Partly Mimic a Black Hole? Journal of High Energy Physics, Gravitation and Cosmolo- gy, 4, ...

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Examination of Sufficient Conditions for Forming Mass of “Massive Graviton”, from Early Universe

Examination of Sufficient Conditions for Forming Mass of “Massive Graviton”, from Early Universe

... We start with a formulation of a modified “Poisson” equation from Poissons and Will as of 2014, and then use the Padmanabhan inter relationship between an infla- ton and an early universe potential system. ...

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Numerical relativity and the early Universe

Numerical relativity and the early Universe

... But before proceeding to the numerical relativity with Galileons, we consider the toy model for software debugging: we examine the dynamics of bubbles of domain wall in the theory of standard scalar field minimally ...

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Effective Field Theories for heavy probes in a hot QCD plasma and in the early universe

Effective Field Theories for heavy probes in a hot QCD plasma and in the early universe

... In order to determine, given a set of parameters, if sterile neutrino are a good dark matter candidate or if they can generate the needed lepton asymmetry for baryogenesis one needs to take into account their interaction ...

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Neutrino decay to electron and W boson in a superstrong magnetic field in the Early Universe

Neutrino decay to electron and W boson in a superstrong magnetic field in the Early Universe

... the Universe structure: from planets to galaxy ...the Early Universe, but until now it is not fully understood what is the preferential mechanism of formation of contemporary observable magnetic ...

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