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Wyszukujesz frazę "gauge field" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Theoretical Investigations into the Fundamental Understanding of the Nature of Time, Gravity and Dynamics
Autorzy:
Kabe, Koustubh
Powiązania:
https://bibliotekanauki.pl/articles/1182950.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
holonomy
entropy
time asymmetry
gravity
anderson-higgs mechanism
gauge field
vorticity
dynamics
spontaneous symmetry breaking
big bang singularity
Opis:
The origins of dynamics, the physical basis of time asymmetry and the nature of gravity are all considered in the model discussed in this paper. The theory takes entropy as not a sheer thermodynamic property but rather considers it as a Quantum Field Theoretic property that emanates from a fundamental field. Also it is quantized, the most fundamental unit being the value of the Boltzmann constant. Ab initio the reason for entropy being a quantum field property is systematically argued. We explicitly show how the fields gain the property of entropy. First and foremost, we get rid of the Penrose-Hawking Big Bang singularity involving all spacetime, by proposing the existence of closed timelike geodesics below the Planck scale since that’s where GR ceases to function. We argue that this corresponds to a breaking of Lorentz covariance symmetry below the Planckian scale. We then explicitly show this symmetry to be broken and then obtain an anomalous current that is non-conserved; we later demonstrate that this is the non-conserved entropy current. This explicitly shows the Planckian nature of the irreversible thermodynamics that yields entropy currents. The static vortex gauge theory that interacts with the entropy endowing K-field actually gives a degree of randomness to the field and endows it with dynamics and gives it the ability to give dynamics to all the other fermionic and bosonic fields including gravity. The acquiring of the property of mass by this field via the Anderson-Higgs mechanism makes the dynamics finite. The positivity of entropy and the mass make the dynamics finite and time asymmetrical. Finally we construct a Hamilton-Volterra system of equations and imposing a special gauge which we call the ”Pauli Gauge”, and then consider the diffusion of curvature mathematically defining it by the Ricci flow, we deliver the pure gravity Einstein field equations. This paper all in all represents a model that gives a new way to think about the origins of dynamics, asymmetry of time, nature of gravity and the finiteness of dynamics.
Źródło:
World Scientific News; 2016, 49, 2; 346-380
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reconstruction of small components using photogrammetry: a quantitative analysis of the depth of field influence using a miniature step gauge
Autorzy:
Guerra, Maria Grazia
Galantucci, Luigi Maria
Lavecchia, Fulvio
De Chiffre, Leonardo
Powiązania:
https://bibliotekanauki.pl/articles/1849141.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
metrology of small parts
uncertainty
photogrammetry
depth of field
miniature step gauge
flatness
dimensional accuracy
Opis:
In this work, authors investigated the effect of the Depth of Field (DoF) reduction, arising when the acquisition of small objects is carried out with a photogrammetry-based system using a Digital Single Lens Reflex (DSLR) camera and the structure from motion (SfM) algorithm. This kind of measuring instrument is very promising for industrial metrology according to the paradigms of the fourth industrial revolution. However, when increasing the magnification level, necessary for the reconstruction of sub-millimetric features, there is a corresponding decrease of the DoF, leading to possible effects on the reconstruction accuracy. Thus, the effect of the DoF reduction was analysed through the reconstruction of a well-known artefact: the step gauge. The analysis was conducted considering the theory behind the DoF concept, the analysis of the 2D images, input of photogrammetric reconstruction and, finally, the results in terms of dimensional verification of the reconstructed step gauge.
Źródło:
Metrology and Measurement Systems; 2021, 28, 2; 323-342
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Gauge Model for Gravity and considerations on the Asymmetry of Time and the SU (2) Mass Gap
Autorzy:
Kabe, Koustubh
Powiązania:
https://bibliotekanauki.pl/articles/1178329.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Gauge theory
general relativity
gravity
loop quantum gravity
mass gap
quantum field theory
quantum gravity
string theory
super gravity (SUGRA)
super symmetry (SUSY)
time
time asymmetry
Opis:
A new formulation of the Hamiltonian formalism of general relativity is developed based on the adiabatic variation of the Hamiltonian constraint. This new formulation consists of complex valued anti-Hermitian 1- called the Berry gauge potentials. These are then used to develop the complex Berry-Einstein-Yang-Mills curvature 2- . The Berry-Yang-Mills field equations are then developed and interpreted in a novel manner to incorporate quantum temporal strings in the non-perturbative formalism. This is however just highlighted in this paper and will be pursued in another paper. Since, the holonomy phase construed is that of Lorentz rotation we perceive a new quantum structure of the space-time namely that of causality. The future light cones are soldered internally to the tensor fields naturally so that the Berry-Ehresmann connection defines a quantum gauge field of causality. This field evokes the causal structure attributed to space-time as gauge degrees of freedom of quantum space ― a fluid of future light cones. This symmetry being of the gauge field type has three generators i.e., three gauge bosons― all heavy and therefore attracted by gravity. Thus causality is a local gauge degree of freedom of gravity. Once the theory is developed, the problem of the mass gap is considered for our gauge field. It seems that the problem is solved in this paper.
Źródło:
World Scientific News; 2017, 81, 2; 198-220
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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