scholarly journals On the Role of Einstein–Cartan Gravity in Fundamental Particle Physics

Universe ◽  
2020 ◽  
Vol 6 (8) ◽  
pp. 112
Author(s):  
Carl F. Diether III ◽  
Joy Christian
Keyword(s):  
Particle Physics ◽  
Mechanical Energy ◽  
Planck Scale ◽  
Energy Scale ◽  
Fundamental Particle ◽  
Strong Force ◽  
Open Questions ◽  
Low Mass ◽  
Planck Energy

Two of the major open questions in particle physics are: (1) Why do the elementary fermionic particles that are so far observed have such low mass-energy compared to the Planck energy scale? (2) What mechanical energy may be counterbalancing the divergent electrostatic and strong force energies of point-like charged fermions in the vicinity of the Planck scale? In this paper, using a hitherto unrecognised mechanism derived from the non-linear amelioration of the Dirac equation known as the Hehl–Datta equation within the Einstein–Cartan–Sciama–Kibble (ECSK) extension of general relativity, we present detailed numerical estimates suggesting that the mechanical energy arising from the gravitationally coupled self-interaction in the ECSK theory can address both of these questions in tandem.

scholarly journals Commission 14: Atomic and Molecular Data

1985 ◽  
Vol 19 (1) ◽  
pp. 121-138
Author(s):  
A. H. Gabriel ◽  
R. W. Nicholls ◽  
D. R. Johnson ◽  
S. L. Mandel’shtam ◽  
H. Nussbaumer ◽  
...  
Keyword(s):  
Particle Physics ◽  
Present Report ◽  
Molecular Data ◽  
The Other ◽  
Fundamental Particle ◽  
Fundamental Physics ◽  
Service Role ◽  
Working Groups ◽  
Nuclear Processes

As the pool of fundamental data available to astronomers continues to increase, the question of how best to promote the necessary cross-discipline interaction becomes increasingly important. Commission 14 has traditionally played an important role in this activity, by publishing triennial reports in the IAU Proceedings, as well as by responding to more specific requests for data. We are fortunate in having the support for these activities of some energetic Working-Groups and Chairmen, whos contributions to the present report are very gratefully acknowledged. With the expansion of available data it is appropriate that these reports take on more and more the form of references to review articles and other more specific data bases. The question of whether the field of activity of the Commission should be enlarged was discussed at Patras and will be reviewed again at the Delhi meeting. One possibility is to include nuclear processes and fundamental particle physics. On the other hand a rationale for limiting the scope of our activities might be the direct application to astronomical observations. Astronomical theorists are usually better placed to access the fundamental data themselves. The interaction between fundamental physics and astronomy will in general take two forms. There is the essential service role of making data available in a usable form. However, we should surely aim to stimulate the other very profitable mode, in which the two disciplines are brought together to form real scientific collaborations, in order to research the problems of astronomy.

scholarly journals THERMAL QUASI-EQUILIBRIUM STATES ACROSS LANDAU HORIZONS IN THE EFFECTIVE GRAVITY OF SUPERFLUIDS

2001 ◽  
Vol 10 (01) ◽  
pp. 57-88 ◽  
Author(s):  
UWE R. FISCHER ◽  
GRIGORI E. VOLOVIK
Keyword(s):  
Energy Spectrum ◽  
Quantum Effect ◽  
Planck Scale ◽  
Momentum Tensor ◽  
Energy Scale ◽  
Hawking Temperature ◽  
Equilibrium States ◽  
Local Thermal Equilibrium ◽  
Quasi Equilibrium ◽  
Planck Energy

We give an account of the physical behaviour of a quasiparticle horizon due to non-Lorentz invariant modifications of the effective spacetime experienced by the quasiparticles ("matter") for high momenta. By introducing a "relativistic" conserved energy–momentum tensor, we derive quasi-equilibrium states of the fluid across the "Landau" quasiparticle horizon at temperatures well above the quantum Hawking temperature. Nonlinear dispersion of the quasiparticle energy spectrum is instrumental for quasiparticle communication and exchange across the horizon. It is responsible for the establishment of the local thermal equilibrium across the horizon with the Tolman temperature being inhomogeneous behind the horizon. The inhomogeneity causes relaxation of the quasi-equilibrium states due to scattering of thermal quasiparticles, which finally leads to a shrinking black hole horizon. This process serves as the classical thermal counterpart of the quantum effect of Hawking radiation and will allow for an observation of the properties of the horizon at temperatures well above the Hawking temperature. We discuss the thermal entropy related to the horizon. We find that only the first nonlinear correction to the energy spectrum is important for the thermal properties of the horizon. They are fully determined by an energy of order E Planck (T/E Planck )1/3, which is well below the Planck energy scale E Planck , so that Planck scale physics is not involved in determining thermal quantities related to the horizon.

scholarly journals Inflation and dark matter after spontaneous Planck scale generation by hidden chiral symmetry breaking

2022 ◽  
Vol 2022 (01) ◽  
pp. 005
Author(s):  
Mayumi Aoki ◽  
Jisuke Kubo ◽  
Jinbo Yang
Keyword(s):  
Dark Matter ◽  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Chiral Symmetry Breaking ◽  
Planck Scale ◽  
Energy Scale ◽  
Dynamical Chiral Symmetry Breaking ◽  
Hidden Sector ◽  
Visible Sector

Abstract Dynamical chiral symmetry breaking in a QCD-like hidden sector is used to generate the Planck mass and the electroweak scale including the heavy right-handed neutrino mass. A real scalar field transmits the energy scale of the hidden sector to the visible sectors, playing besides a role of inflaton in the early Universe while realizing a Higgs-inflation-like model. Our dark matter candidates are hidden pions that raise due to dynamical chiral symmetry breaking. They are produced from the decay of inflaton. Unfortunately, it will be impossible to directly detect them, because they are super heavy (109 ∼ 12 GeV), and moreover the interaction with the visible sector is extremely suppressed.

scholarly journals PASSAGE OF TIME IN A PLANCK SCALE ROOTED LOCAL INERTIAL STRUCTURE

2004 ◽  
Vol 13 (06) ◽  
pp. 1037-1071 ◽  
Author(s):  
JOY CHRISTIAN
Keyword(s):  
Line Element ◽  
Planck Scale ◽  
Doppler Shifts ◽  
Internal Phase ◽  
The World ◽  
Flow Of Time ◽  
Structural Attribute ◽  
Γ Rays ◽  
Planck Energy

It is argued that the "problem of time" in quantum gravity necessitates a refinement of the local inertial structure of the world, demanding a replacement of the usual Minkowski line element by a (4+2n)-dimensional pseudo-Euclidean line element, with the extra 2n being the number of internal phase space dimensions of the observed system. In the refined structure, the inverse of the Planck time takes over the role of observer-independent conversion factor usually played by the speed of light, which now emerges as an invariant but derivative quantity. In the relativistic theory based on the refined structure, energies and momenta turn out to be invariantly bounded from above, and lengths and durations similarly bounded from below, by their respective Planck scale values. Along the external timelike world-lines, the theory naturally captures the "flow of time" as a genuinely structural attribute of the world. The theory also predicts expected deviations — suppressed quadratically by the Planck energy — from the dispersion relations for free fields in the vacuum. The deviations from the special relativistic Doppler shifts predicted by the theory are also suppressed quadratically by the Planck energy. Nonetheless, in order to estimate the precision required to distinguish the theory from special relativity, an experiment with a binary pulsar emitting TeV range γ-rays is considered in the context of the predicted deviations from the second-order shifts.

scholarly journals Constraining the existence of magnetic monopoles by Dirac-dual electric charge renormalization effect under the Planck scale limit

2016 ◽  
Vol 31 (24) ◽  
pp. 1650133
Author(s):  
Yanbin Deng ◽  
Changyu Huang ◽  
Yong-Chang Huang
Keyword(s):  
Electric Charge ◽  
Magnetic Charge ◽  
Planck Scale ◽  
Magnetic Monopoles ◽  
Energy Scale ◽  
Group Equation ◽  
Coupling Constant ◽  
Electric Coupling ◽  
Charge Quantization ◽  
Planck Energy

It was suggested by dimensional analysis that there exists a limit called the Planck energy scale coming close to which the gravitational effects of physical processes would inflate and struggle for equal rights so as to spoil the validity of pure nongravitational physical theories that governed well below the Planck energy. Near the Planck scale, the Planck charges, Planck currents, or Planck parameters can be defined and assigned to physical quantities such as the single particle electric charge and magnetic charge as the ceiling value obeyed by the low energy ordinary physics. The Dirac electric-magnetic charge quantization relation as one form of electric-magnetic duality dictates that, the present low value electric charge corresponds to a huge magnetic charge value already passed the Planck limit so as to render theories of magnetic monopoles into the strong coupling regime, and vice versa, that small and tractable magnetic charge values correspond to huge electric charge values. It suggests that for theoretic models in which the renormalization group equation provides rapid growth for the running electric coupling constant, it is easier for the dual magnetic monopoles to emerge at lower energy scales. Allowing charges to vary with the Dirac electric-magnetic charge quantization relation while keeping values under the Planck limit informs that the magnetic charge value drops below the Planck ceiling value into the manageable region when the electric coupling constant grows to one fourth at a model dependent energy scale, and continues dropping toward half the value of the Planck magnetic charge as the electric coupling constant continues growing at the model dependent rate toward one near Planck energy scale.

PHYSICS AT THE PLANCK LENGTH

1993 ◽  
Vol 08 (23) ◽  
pp. 4013-4018 ◽  
Author(s):  
JOHN ARCHIBALD WHEELER
Keyword(s):  
Particle Physics ◽  
Short Distance ◽  
International Workshop ◽  
Energy Scale ◽  
Theoretical Physics ◽  
Scientific Publishing ◽  
Planck Length ◽  
World Scientific Publishing ◽  
Theory Of Gravitation ◽  
Planck Energy

Results of the conference, “String Quantum Gravity and Physics at the Planck Energy Scale,” organized by Dr. Norma Sanchez, in Erice, Sicily, June 21–28, 1992 will appear in Proceedings of the International Workshop of Theoretical Physics, 6th Session, World Scientific Publishing Co. Pte. Ltd., Singapore, 1993. The conference has given new occasion to ask what linkage, if any, ties together particle physics and the quantum theory of gravitation, where this fantastically short distance first displayed its relevance.

Strings at superplanckian energies: in search of the string symmetry

1989 ◽  
Vol 329 (1605) ◽  
pp. 401-413 ◽  
Keyword(s):  
Planck Scale ◽  
Space Time ◽  
Energy Scale ◽  
Superstring Theory ◽  
Characteristic Energy ◽  
High Energies ◽  
Planck Energy ◽  
Very High ◽  
Shed Light

The characteristic energy scale of superstring theory, which attempts to unify all the interactions of matter with gravity, is the Planck energy of 10 28 eV. Although this energy is 16 orders of magnitude higher than currently accessible energies, it is important to consider the nature of string physics in this region since it could shed light on the non-perturbative physics at the Planck scale, which determines the structure of the vacuum. In this paper I review some recent attempts to explore this domain. In particular, I discuss string scattering at very high energies, the indications of the existence of a large symmetry that is restored at short distances and the possible breakdown of our concepts of space-time at these energies.

scholarly journals A Review of Inconsistencies and Unfounded Assumptions in Physics Enables A Path Forward

2020 ◽  
Vol 2 (1) ◽  
pp. 115-120
Author(s):  
William Oakley
Keyword(s):  
Particle Physics ◽  
Dynamic Equilibrium ◽  
Electrostatic Force ◽  
Relativistic Quantum ◽  
Planck Scale ◽  
Radial Force ◽  
Two Dimensions ◽  
Electromagnetic Energy ◽  
Three Dimensions ◽  
Strong Force

It is widely recognized significant parts of leading-edge physics are at an impasse. Perhaps it is time to re-evaluate long-standing inconsistencies and assumptions that have become dogma but are erroneous and blocking progress. Newtonʼs gravitational constant GN is assumed a natural constant, having originated via Newtonʼs notion of gravity as radial force acting on mass in flat observer space. But Einstein showed gravity due to curved space time with “mass” dimensionally c2 remote from the observer energy domain. Dirac stated (elementary) particles are “no more than electromagnetic energy localized in observer space”. This suggests gravity is emergent at the particle scale by spacetime curved in three dimensions. But Newtonʼs assumed radial force is consistent only with spacetime curvature in the two dimensions orthogonal to the radial, so how can GN be fundamental? Do the different dimensionalities of Newtonʼs and Einsteinʼs theories relate to the Dark Matter issue? Describing the electron as a photon in a relativistic quantum loop localized by curved spacetime enables derivation of an expression for GN giving a value within the empirical uncertainty. The electron is posited as relativistic electromagnetic energy in dynamic equilibrium between circumferential metric tension at the Strong Force scale and radial electrostatic force, satisfying the Planck “Force Equality” premise. As historically long suspected GN contains a numerical factor of c4, derived from the cgs units, in which it was first measured, and a relativistic factor, α-4/3, which move the Planck scale into exact correspondence with the electron parameters. General Relativity is shown a fundamental femto-scale theory where the strong force in a metric curved at the particle scale is manifest in observer space reduced by the classical “Large Number” of 5.7x1044 and is evident as gravity. The expression obtained for GN is supported by deriving the MOND constant and the observed flat galactic star rotation velocity curves. Resolving identified erroneous assumptions and inconsistencies will significantly impact cosmology and particle physics and bring gravitational and electromagnetic unification closer.

scholarly journals Renormalization group equations of Higgs-R2 inflation

2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
Yohei Ema ◽  
Kyohei Mukaida ◽  
Jorinde van de Vis
Keyword(s):  
Renormalization Group ◽  
Standard Model ◽  
Planck Scale ◽  
Energy Scale ◽  
Einstein Frame ◽  
Ricci Scalar ◽  
Minimal Coupling ◽  
Renormalization Group Equations ◽  
The Standard Model

Abstract We derive one- and two-loop renormalization group equations (RGEs) of Higgs-R2 inflation. This model has a non-minimal coupling between the Higgs and the Ricci scalar and a Ricci scalar squared term on top of the standard model. The RGEs derived in this paper are valid as long as the energy scale of interest (in the Einstein frame) is below the Planck scale. We also discuss implications to the inflationary predictions and the electroweak vacuum metastability.

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