scholarly journals Extreme Properties, variances and the behavior of the Universe

2021 ◽  
Author(s):  
K.H.K. Geerasee Wijesuriya
Keyword(s):  
Vacuum Energy ◽  
Zero Point ◽  
Vacuum State ◽  
Quantum Vacuum ◽  
Point Energy ◽  
Real Nature ◽  
Accelerating Expansion ◽  
Expansion Of The Universe ◽  
Energy Quantum ◽  
The Universe

At this moment, scientists don’t have any significant explanation to explain ‘why there are much matter particles than anti-matter particles’ in the universe. But with this research, it is going to provide an explanation for that.An attempt of this research is to provide detailed innovative arguments regarding the real nature of supermassive black holes also. Here this is intending to explain why, the contribution to the accelerating expansion of the universe by the quantum vacuum is much bit than the contribution by other matters in the universe.Scientists have confused on why the energy of the zero-point energy (quantum vacuum) state, does not contribute to the cosmological vacuum energy (cosmological constant) much. The goal of this research is to investigate a solution to that particular problem also. This will explain why there is a difference between the observed energy of a satellite and the theoretically calculated energy of a satellite, which is orbiting around the Earth. This research will argue regarding whether dark matter is responsible for differences in observed and theoretical speed of stars revolving around the center of Galaxies.

scholarly journals DARK ENERGY AND QCD GHOST

2012 ◽  
Vol 07 ◽  
pp. 194-201
Author(s):  
NOBUYOSHI OHTA
Keyword(s):  
Dark Energy ◽  
Hubble Parameter ◽  
Vacuum Energy ◽  
Mass Scale ◽  
Time Dependent ◽  
Accelerating Expansion ◽  
Expansion Of The Universe ◽  
The Right ◽  
The Universe

We argue that the dark energy that explains the observed accelerating expansion of the universe may arise due to the contribution to the vacuum energy of the QCD ghost in a time-dependent background. We show that the QCD ghost produces dark energy proportional to the Hubble parameter [Formula: see text] (ΛQCD is the QCD mass scale) which has the right magnitude ~ (3 × 10-3 eV)4.

scholarly journals Vacuum energy and the cosmological constant

2015 ◽  
Vol 30 (22) ◽  
pp. 1540033 ◽  
Author(s):  
Steven D. Bass
Keyword(s):  
Energy Density ◽  
Large Hadron Collider ◽  
Cosmological Constant ◽  
Vacuum Energy ◽  
Hadron Collider ◽  
Planck Scale ◽  
Vacuum Energy Density ◽  
Accelerating Expansion ◽  
Expansion Of The Universe ◽  
The Universe

The accelerating expansion of the Universe points to a small positive value for the cosmological constant or vacuum energy density. We discuss recent ideas that the cosmological constant plus Large Hadron Collider (LHC) results might hint at critical phenomena near the Planck scale.

A Clifford-gravity-based cosmology, dark matter and dark energy

2015 ◽  
Vol 12 (03) ◽  
pp. 1550037 ◽  
Author(s):  
Carlos Castro
Keyword(s):  
Dark Matter ◽  
Dark Energy ◽  
Degrees Of Freedom ◽  
Vacuum Energy ◽  
Vacuum Energy Density ◽  
De Sitter ◽  
Four Dimensions ◽  
Accelerating Expansion ◽  
Expansion Of The Universe ◽  
The Universe

A Clifford-gravity-based model is exploited to build a generalized action (beyond the current ones used in the literature) and arrive at relevant numerical results which are consistent with the presently-observed de Sitter accelerating expansion of the universe driven by a very small vacuum energy density ρ obs ~ 10-120(MP)4 (MP is the Planck mass) and provide promising dark energy/matter candidates in terms of the 16 scalars corresponding to the degrees of freedom associated with a Cl (3, 1)-algebra-valued scalar field Φ in four dimensions.

scholarly journals Recent Developments in Quantum Vacuum Energy for Confined Fields

2005 ◽  
Vol 20 (19) ◽  
pp. 4628-4637 ◽  
Author(s):  
K. A. MILTON
Keyword(s):  
Vacuum Energy ◽  
Ad Hoc ◽  
Energy Parameter ◽  
Zero Point ◽  
Quantum Vacuum ◽  
Zero Point Energy ◽  
Point Energy ◽  
New Developments ◽  
Hadronic Physics ◽  
Recent Developments

Quantum vacuum energy entered hadronic physics through the zero-point energy parameter introduced into the bag model. Estimates of this parameter led to apparent discordance with phenomenological fits. More serious were divergences which were omitted in an ad hoc manner. New developments in understanding Casimir self-stresses, and the nature of surface divergences, promise to render the situation clearcut.

scholarly journals ON THE MEASURE OF SPACETIME AND GRAVITY

2011 ◽  
Vol 20 (14) ◽  
pp. 2739-2747 ◽  
Author(s):  
NARESH DADHICH
Keyword(s):  
Constant Curvature ◽  
Vacuum Energy ◽  
Physical Constant ◽  
Natural State ◽  
Differential Identity ◽  
Guiding Principle ◽  
Accelerating Expansion ◽  
Spacetime Structure ◽  
Expansion Of The Universe ◽  
The Universe

By following the general guiding principle that nothing should be prescribed or imposed on the universal entity, spacetime, we establish that it is the homogeneity (by which we mean homogeneity and isotropy of space and homogeneity of time) that requires not only a universally constant invariant velocity but also an invariant length given by its constant curvature, Λ and spacetime is completely free of dynamics. Thus c and Λ are the only two true constants of the spacetime structure and no other physical constant could claim this degree of fundamentalness. When matter is introduced, the spacetime becomes inhomogeneous and dynamic, and its curvature then determines by the Bianchi differential identity, the equation of motion for the Einstein gravity. The homogeneity thus demands that the natural state of free spacetime is of constant curvature and the cosmological constant thus emerges as a clear prediction which seems to be borne out by the observations of accelerating expansion of the Universe. However it has no relation to the vacuum energy and it could be envisioned that in terms of the Planck area, the Universe measures 10120 units!

scholarly journals ON TOPOLOGICAL DEFECTS AND COSMOLOGICAL CONSTANT

2014 ◽  
Vol 29 (01) ◽  
pp. 1450007 ◽  
Author(s):  
B. RAYCHAUDHURI ◽  
F. RAHAMAN ◽  
M. KALAM
Keyword(s):  
Cosmological Constant ◽  
Vacuum Energy ◽  
Ad Hoc ◽  
Topological Defects ◽  
Field Equations ◽  
Theoretical Support ◽  
Accelerating Expansion ◽  
Expansion Of The Universe ◽  
The Universe

Einstein introduced cosmological constant in his field equations in an ad hoc manner. Cosmological constant plays the role of vacuum energy of the universe which is responsible for the accelerating expansion of the universe. To give a theoretical support, it remains an elusive goal to modern physicists. We provide a prescription to obtain cosmological constant from the phase transitions of the early universe when topological defects, namely monopole might have existed.

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