The series Problems of Nonuniform Physical Vacuum

1999 ◽  
Vol 169 (5) ◽  
pp. 591
Author(s):  
Eduard P. Kruglyakov ◽  
Valerii A. Rubakov
Keyword(s):  
Physical Vacuum

scholarly journals КВАЗАР

2019 ◽  
pp. 175-216
Author(s):  
А. Н. Нарожный
Keyword(s):  
Accretion Disk ◽  
Open System ◽  
Central Body ◽  
Rest Mass ◽  
Finite Size ◽  
Physical Vacuum ◽  
Simple Explanation ◽  
Earth’S Atmosphere ◽  
Earth's Atmosphere ◽  
Three Components

An attempt is made to present a quasar structure based on the presence in its center of a supermassive object with an accretion disk, as well as the mechanisms for generating jet components and their initial segments. Model jet built on the basis of the allocation of the three main sources of matter supplied to the ejected jet. Such sources are: the baryonic matter of the accretion disk, the matter of the central body of the galaxy and dark galactic matter. Particles of dark matter — bosons — appear as a result of the pairwise combination of microwave photons, which are the remnant of stellar radiation. Deeper levels of matter (physical vacuum, or ether) are not taken into account, but their respective contributions are indicated in appropriate places. The central galactic body is considered an open system (dark star Mitchell - Laplace). This object has a finite size, finite density, and can have a large internal energy. Giving the central body the status of an open system allows one to overcome some difficult moments in the interpretation of observational data concerning the initial parts of the jet. The spatial separation of the original sources of matter makes it possible to speak of three components at the base of the jet of the active galactic nucleus.However, the appearance of a jet with three components requires certain conditions in the galactic core, which are not always there, but can occasionally appear. In addition, despite the fact that for the middle and central components of the jet the mechanism of their formation is the same, the central component of the jet may be absent. For its appearance, it is necessary that the energy and dynamic parameters of the central galactic body and the accretion disk satisfy certain conditions. Removing the restriction on the speed of motion of particles with a nonzero rest mass leads to a simple explanation of the presence of hard radiation from blazars and the appearance of excessively high energies of cosmic particles entering the earth's atmosphere. The consequences resulting from the mechanism of formation of two internal components of the jet are given.Two of them can be checked on the radiation of the central regions of nearby galaxies, and the other two consequences can relate to events on our planet — known major catastrophes and to the phenomenon sometimes observed in the Earth’s atmosphere

DOMAIN WALL NETWORK AS QCD VACUUM: CORRELATION FUNCTIONS AND CONFINEMENT OF STATIC QUARKS

2019 ◽  
pp. 38-47
Author(s):  
V.A. Tainov
Keyword(s):  
Topological Charge ◽  
Wilson Loop ◽  
Domain Model ◽  
Physical Vacuum ◽  
Qcd Vacuum ◽  
Almost Everywhere ◽  
Vacuum Fields ◽  
Point Correlation ◽  
Point Correlation Function ◽  
Area Law

Within the domain model of QCD vacuum the properties of a statistical ensemble of almost everywhere homogeneous Abelian (anti-)self-dual gluon fields representing the physical vacuum of quantum chromodynamics are investigated. The two-point correlation function of the topological charge density is calculated and the topological susceptibility is found. It is shown that such vacuum fields ensure the implementation of the area law for the Wilson loop, i.e. the confinement of static quarks.

scholarly journals Vacuum Condensate Picture of Quantum Gravity

Symmetry ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 87 ◽  
Author(s):  
Herbert Hamber
Keyword(s):  
Quantum Gravity ◽  
Physical Vacuum ◽  
Vacuum Condensate ◽  
Analytical Treatment ◽  
Long Distance ◽  
Gravitational Vacuum ◽  
Analytic Behavior ◽  
Distance Behavior ◽  
Gravity Perturbation ◽  
New Phase

In quantum gravity perturbation theory in Newton’s constant G is known to be badly divergent, and as a result not very useful. Nevertheless, some of the most interesting phenomena in physics are often associated with non-analytic behavior in the coupling constant and the existence of nontrivial quantum condensates. It is therefore possible that pathologies encountered in the case of gravity are more likely the result of inadequate analytical treatment, and not necessarily a reflection of some intrinsic insurmountable problem. The nonperturbative treatment of quantum gravity via the Regge–Wheeler lattice path integral formulation reveals the existence of a new phase involving a nontrivial gravitational vacuum condensate, and a new set of scaling exponents characterizing both the running of G and the long-distance behavior of invariant correlation functions. The appearance of such a gravitational condensate is viewed as analogous to the (equally nonperturbative) gluon and chiral condensates known to describe the physical vacuum of QCD. The resulting quantum theory of gravity is highly constrained, and its physical predictions are found to depend only on one adjustable parameter, a genuinely nonperturbative scale ξ in many ways analogous to the scaling violation parameter Λ M ¯ S of QCD. Recent results point to significant deviations from classical gravity on distance scales approaching the effective infrared cutoff set by the observed cosmological constant. Such subtle quantum effects are expected to be initially small on current cosmological scales, but could become detectable in future high precision satellite experiments.

scholarly journals Developing Physical Axiomatics: Results and Outcomes

2019 ◽  
Vol 224 ◽  
pp. 06010
Author(s):  
Maria Astafurova
Keyword(s):  
Electromagnetic Waves ◽  
Fundamental Property ◽  
Electromagnetic Property ◽  
Physical Property ◽  
Physical World ◽  
Axiomatic System ◽  
Physical Vacuum ◽  
Fundamental Properties ◽  
Expansion Characteristic ◽  
Electric And Magnetic Fields

The ideology and scheme of physical axiomatics are proposed, the initial postulates and axioms are formulated. The essential principles of axiomatics are based on scientific statements and concepts that reflect the fundamental properties of the physical world. One of the obtained outcomes is the statement: “In the physical world, all homogeneous quantities are commensurable, and every real physical property is limited by a certain , The analysis of the problem of incommensurability of radius and circumference leads to the conclusion about the existence of a fundamental property of the physical world, different from space and time. This property is manifested in the forms of electric charges, electric and magnetic fields, electromagnetic waves and fields. Given the nature of its manifestation, this property is called the “electromagnetic property”. The developed axiomatic system and the obtained consequences are the basis of the working model of the physical vacuum. On the basis of this model there have been derived the equations connecting parameters of basic interactions. The components of the internal energy of the physical vacuum are determined. One of these components determines the phenomenon of the Universe expansion. characteristic for this property, minimum nonzero value”. Homogeneous quantities are quantities of one and the same nature, relating to the manifestation of one and the same physical property.

Fabrication of Core-shell Type FeCo-Au (Ag) High Moment Magnetic Nanoparticles

2005 ◽  
Vol 877 ◽  
Author(s):  
Jianmin Bai ◽  
Yunhao Xu ◽  
Jian-Ping Wang
Keyword(s):  
Deposition Process ◽  
Superparamagnetic Nanoparticles ◽  
Core Shell ◽  
Physical Vacuum ◽  
Shell Type ◽  
On Line ◽  
High Magnetic Moment ◽  
20 Nm ◽  
Controllable Particle Size ◽  
Feco Nanoparticles

AbstractWe developed a physical vacuum deposition technique combining an on-line sputtering/evaporation process with an integrated nanocluster deposition process to prepare core-shell type nanoparticles. High magnetic moment (Fe60Co40)coreAushell and (Fe60Co40)coreAgshell superparamagnetic nanoparticles with controllable particle size of 10 – 20 nm and Au/Ag shell thickness of 1 – 3 nm were prepared successfully by using method. Au shell is not only functional for the potential biocompatibility but also the key to prevent oxidation of FeCo nanoparticles. Saturation magnetization of (Fe60Co40)coreAushell nanoparticles was found three times higher than that of iron oxide nanoparticles. This novel technique enables us to control independently the dimensions of core and shell and select individually materials for core and shell for other core-shell type nanoparticles.

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