scholarly journals VARIABILITY OF FUNDAMENTAL CONSTANTS

2003 ◽  
Vol 12 (09) ◽  
pp. 1751-1754 ◽  
Author(s):  
ASHER PERES
Keyword(s):  
General Relativity ◽  
Fine Structure ◽  
Maxwell Equations ◽  
Structure Constant ◽  
Spectral Lines ◽  
The Other ◽  
Fine Structure Constant ◽  
Fundamental Constants ◽  
Speed Of Light ◽  
Constant E

Are universal fundamental constants really constant over cosmological times? Recent observations of the fine structure of spectral lines in the early universe have been interpreted as due to a variation of the fine structure constant e2/4πε0ℏc. From the assumed validity of Maxwell equations in general relativity and well known experimental facts, it is proved that e and ℏ are absolute constants. On the other hand, the speed of light need not be constant.

scholarly journals Searching for space-time variation of the fine structure constant using QSO spectra: overview and future prospects

2009 ◽  
Vol 5 (H15) ◽  
pp. 304-304
Author(s):  
J. C. Berengut ◽  
V. A. Dzuba ◽  
V. V. Flambaum ◽  
J. A. King ◽  
M. G. Kozlov ◽  
...  
Keyword(s):  
Nuclear Reactor ◽  
Structure Constant ◽  
Big Bang ◽  
The Other ◽  
Fine Structure Constant ◽  
Spatial And Temporal Variation ◽  
Fundamental Constants ◽  
Future Prospects ◽  
Big Bang Nucleosynthesis ◽  
The Universe

Current theories that seek to unify gravity with the other fundamental interactions suggest that spatial and temporal variation of fundamental constants is a possibility, or even a necessity, in an expanding Universe. Several studies have tried to probe the values of constants at earlier stages in the evolution of the Universe, using tools such as big-bang nucleosynthesis, the Oklo natural nuclear reactor, quasar absorption spectra, and atomic clocks (see, e.g. Flambaum & Berengut (2009)).

scholarly journals Fundamental physics and the fine-structure constant

2017 ◽  
Vol 5 (2) ◽  
pp. 46 ◽  
Author(s):  
Michael Sherbon
Keyword(s):  
Fine Structure ◽  
Structure Constant ◽  
Fine Structure Constant ◽  
Electron Mass ◽  
Fundamental Constants ◽  
Mass Ratio ◽  
Fundamental Physics ◽  
Weak Force ◽  
Strong Force ◽  
Symmetry Principles

From the exponential function of Euler’s equation to the geometry of a fundamental form, a calculation of the fine-structure constant and its relationship to the proton-electron mass ratio is given. Equations are found for the fundamental constants of the four forces of nature: electromagnetism, the weak force, the strong force and the force of gravitation. Symmetry principles are then associated with traditional physical measures.

scholarly journals Fine Structure Constant derived from Principle Theory.

2021 ◽  
Author(s):  
Manfred Geilhaupt
Keyword(s):  
General Relativity ◽  
Fine Structure ◽  
General Theory ◽  
Rest Mass ◽  
Structure Constant ◽  
Fine Structure Constant ◽  
Theory Of Relativity ◽  
General Theory Of Relativity ◽  
The Standard Model ◽  
Principle Theory

Abstract Derivation of mass (m), charge (e) and fine structure constant (FSC) from theory are unsolved problems in physics up to now. Neither the Standard Model (SM) nor the General theory of Relativity (GR) has provided a complete explanation for mass, charge and FSC. The question “of what is rest mass” is therefore still essentially unanswered. We will show that the combination of two Principle Theories, General Relativity and Thermodynamics (TD), is able to derive the restmass of an electron (m) which surprisingly depends on the (Sommerfeld) FSC (same for the charge (e)).

scholarly journals VLT and E-ELT spectrographs & fundamental-constants

2009 ◽  
Vol 5 (H15) ◽  
pp. 326-326
Author(s):  
Paolo Molaro
Keyword(s):  
Fine Structure ◽  
Equivalence Principle ◽  
Structure Constant ◽  
Rate Of Change ◽  
Fine Structure Constant ◽  
Doppler Velocity ◽  
Fundamental Constants ◽  
Velocity Shift ◽  
Theoretical Predictions

The fundamental dimensionless physical constants cannot be predicted by theory but can only be measured experimentally. And so it is of their possible variation where there are several theoretical predictions but unfortunately with little theoretical guidance on the expected rate of change. The role of fundamental constants in the representation of nature as well as the implications of their variability for the Equivalence Principle and cosmology have been highlighted in many contributions at this conference (cfr K. Olive and J.P Uzan, these proceedings). Measuring the variability of the fine structure constant α or the electron-to-proton ratio μ by means of absorption lines implies the measurement of a tiny variation of the position of one or a few lines with regard to other lines which are taken as reference. For the fine structure constant the relation between its change and the doppler velocity shift is:

scholarly journals Calculation of the Fine Structure Constant derived from Principle Theory.

2021 ◽  
Author(s):  
Manfred Geilhaupt
Keyword(s):  
General Relativity ◽  
Fine Structure ◽  
Structure Constant ◽  
Point Of View ◽  
Fine Structure Constant ◽  
Principle Theory

Abstract Recently we have presented in a paper that the combination of two Principle Theories, General Relativity (GR) and Thermodynamics (TD), is able to derive the restmass (m) of an electron which (surprisingly) depends on the Sommerfeld Fine Structure Constant (FSC). In this paper we present a completed calculation of the FSC number (1/α=137.035999024(9)) from a GR+TD point of view

scholarly journals DO THE FUNDAMENTAL CONSTANTS CHANGE WITH TIME?

2008 ◽  
Vol 23 (32) ◽  
pp. 2711-2725 ◽  
Author(s):  
NISSIM KANEKAR
Keyword(s):  
Structure Constant ◽  
Low Energy ◽  
Spectral Lines ◽  
Fine Structure Constant ◽  
Electron Mass ◽  
Fundamental Constants ◽  
Mass Ratio ◽  
Advantages And Disadvantages ◽  
Distant Galaxies ◽  
Systematic Effects

Comparisons between the redshifts of spectral lines from cosmologically-distant galaxies can be used to probe temporal changes in low-energy fundamental constants like the fine structure constant and the proton–electron mass ratio. Here, we review the results from, and the advantages and disadvantages of, the best techniques using this approach, before focussing on a new method, based on conjugate satellite OH lines, that appears to be less affected by systematic effects and hence holds much promise for the future.

scholarly journals Electric Charge and Its Field as Deformed Space

2019 ◽  
Vol 11 (4) ◽  
pp. 29
Author(s):  
Shlomo Barak
Keyword(s):  
Fine Structure ◽  
Electric Charge ◽  
Structure Constant ◽  
Electromagnetic Theory ◽  
The Other ◽  
Fine Structure Constant ◽  
Electric Charge Density ◽  
Electron Positron ◽  
Simple Equations ◽  
First Time

The essence of electric charge has been a mystery. So far, no theory has been able to derive the attributes of electric charge, which are: bivalency, stability, quantization, equality of the absolute values of the bivalent charges, the electric field it creates and the radii of the bivalent charges. Our model of the electric charge and its field (this paper) enables us (in additional papers), for the first time, to derive simple equations for the radii and masses of the electron/positron muon/anti-muon and quarks/anti-quarks. These equations contain only the constants G, c, ℏ  and α (the fine structure constant). The calculated results based on these equations comply accurately with the experimental results. In this paper, which serves as a basis for the other papers, we define electric charge density, based on space density. This definition alone, without any phenomenology, yields the theory of Electrostatics. Electrostatics together with Lorentz Transformation is known to yield the entire Maxwell Electromagnetic theory.

scholarly journals Spectra of Distant Quasars and Verification of Possible Variation of Fundamental Constants over Cosmological Time-Scales

1994 ◽  
Vol 159 ◽  
pp. 361-362
Author(s):  
D.A. Varshalovich ◽  
A.Y. Potekhin
Keyword(s):  
Fine Structure ◽  
Time Scales ◽  
Spectroscopic Data ◽  
Structure Constant ◽  
Fine Structure Constant ◽  
Fundamental Constants ◽  
Mass Ratio ◽  
Cosmological Time ◽  
Proton Mass ◽  
Variation Rate

Constraints on possible variation rate of the fine-structure constant, , and the electron-proton mass ratio , over cosmological time scales are obtained from analyses of quasar spectroscopic data.

The measurement of the fundamental constants

1983 ◽  
Vol 310 (1512) ◽  
pp. 215-220
Keyword(s):  
Fine Structure ◽  
Josephson Effect ◽  
Structure Constant ◽  
Atomic Mass ◽  
Fine Structure Constant ◽  
Fundamental Constants ◽  
Velocity Of Light ◽  
Time Standard

Some recent precision experiments that are likely to influence the accepted values of the fundamental constants are reviewed briefly: the measurement of the velocity of light, the possibility of redefining the metre in terms of the caesium time standard, developments that may allow the introduction of an atomic mass standard, the use of the Josephson effect to maintain electrical standards, and some experiments that have led to an improved precision for the fine structure constant.

scholarly journals Search for variation of the fundamental constants in atomic, molecular, and nuclear spectra

2009 ◽  
Vol 87 (1) ◽  
pp. 25-33 ◽  
Author(s):  
V V Flambaum ◽  
V A Dzuba
Keyword(s):  
Fine Structure ◽  
Absorption Spectra ◽  
Atomic Clock ◽  
Structure Constant ◽  
Fine Structure Constant ◽  
Frequency Change ◽  
Fundamental Constants ◽  
Mass Ratio ◽  
Proton Mass ◽  
Nuclear Transitions

The search for variation of the fundamental constants such as the fine-structure constant α (α = e2/hc) and the ratios of fundamental masses (for example, electron-to-proton mass ratio μ = me/mp) is reviewed. Strong emphasis is given to establishing the relationships between the change in the measured frequencies of atomic, molecular, or nuclear transitions and the corresponding change of the fundamental constants. Transitions in which the sensitivity of the frequency change to the variation of the fine-structure constant is strongly enhanced are discussed and most recent experimental results are presented. Most attention is given to the use of atomic, molecular, and nuclear transitions in the study of quasar absorption spectra and in atomic clock experiments.PACS Nos.: 31.25.Eb, 31.25.Jf

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