scholarly journals FATHER TIME II: A PHYSICAL BASIS BEHIND FEYNMAN'S IDEA OF (ANTI)PARTICLES MOVING BACKWARD IN TIME, AND AN EXTENSION OF THE CPT THEOREM TO INCLUDE NONLOCAL GAUGE FIELDS

1999 ◽  
Vol 14 (37) ◽  
pp. 2557-2560
Author(s):  
T. K. RAI DASTIDAR ◽  
KRISHNA RAI DASTIDAR
Keyword(s):  
Atomic Level ◽  
Physical Basis ◽  
Gauge Fields ◽  
Arrow Of Time ◽  
Conservation Of Energy ◽  
Cpt Theorem ◽  
The Universe ◽  
Fundamental Requirement

It was demonstrated in a recent paper (Mod. Phys. Lett.A13, 1265 (1998); hep-th/9902020) that the existence of a nonthermodynamic arrow of time at the atomic level is a fundamental requirement for conservation of energy in matter-radiation interaction. Since the universe consists of only — energy and massive matter — we argue that as a consequence of this earlier result, particles and antiparticles must necessarily move in opposite directions in time. Our result further indicates that the CPT theorem can be extended to cover nonlocal gauge fields.

scholarly journals FATHER TIME I: DOES THE COSMIC MICROWAVE BACKGROUND RADIATION PROVIDE A UNIVERSAL ARROW OF TIME?

1999 ◽  
Vol 14 (36) ◽  
pp. 2499-2505 ◽  
Author(s):  
T. K. RAI DASTIDAR
Keyword(s):  
Cosmic Microwave Background ◽  
Background Radiation ◽  
Cosmic Microwave Background Radiation ◽  
Arrow Of Time ◽  
Microwave Background ◽  
Conservation Of Energy ◽  
Microwave Background Radiation ◽  
The Universe ◽  
Fundamental Requirement ◽  
Time’S Arrow

It was demonstrated in a recent paper (Mod. Phys. Lett.A13, 1265 (1998), hep-th/9902020) that the existence of a nonthermodynamic arrow of time at the atomic level is a fundamental requirement for conservation of energy in matter-radiation interaction. In this letter we show that the cosmic microwave background radiation can provide this time's arrow to all particles in the universe that are acted on by the electromagnetic field.

The Shape of Time

2018 ◽  
Author(s):  
Donald C. Williams
Keyword(s):  
Time Travel ◽  
Arrow Of Time ◽  
The Past ◽  
Time Traveler ◽  
Dimensional Shape ◽  
Manifold Theory ◽  
The Universe

This chapter is about the arrow or direction of time against the backdrop of the pure manifold theory. It is accepted that the fact that time has a direction ought to be explained. It is proposed that the arrow of time is grounded in deeper facts about the four-dimensional nature of each object in the manifold and in facts about the overall four-dimensional shape of the universe. Towards the end of the chapter the possibility of time travel is discussed. It is argued that time travel is metaphysically possible and that there is a reasonable and intelligible sense in which a time traveler can and cannot change the past, according to the pure manifold theory.

Using three elementary particles to construct the physical world

2021 ◽  
Vol 34 (2) ◽  
pp. 236-247
Author(s):  
Huawang Li
Keyword(s):  
Electromagnetic Waves ◽  
Physical World ◽  
Elementary Particles ◽  
Average Kinetic Energy ◽  
Particle Collisions ◽  
Conservation Of Energy ◽  
Fundamental Particles ◽  
Energy And Momentum ◽  
Physical Phenomena ◽  
The Universe

In this paper, we conjecture that gravitation, electromagnetism, and strong nuclear interactions are all produced by particle collisions by determining the essential concept of force in physics (that is, the magnitude of change in momentum per unit time for a group of particles traveling in one direction), and further speculate the existence of a new particle, Yizi. The average kinetic energy of Yizi is considered to be equal to Planck’s constant, so the mass of Yizi is calculated to be <mml:math display="inline"> <mml:mrow> <mml:mn>7.37</mml:mn> <mml:mo>×</mml:mo> <mml:msup> <mml:mrow> <mml:mn>10</mml:mn> </mml:mrow> <mml:mrow> <mml:mo>−</mml:mo> <mml:mn>51</mml:mn> </mml:mrow> </mml:msup> </mml:mrow> </mml:math> kg and the average velocity of Yizi is <mml:math display="inline"> <mml:mrow> <mml:mn>4.24</mml:mn> <mml:mo>×</mml:mo> <mml:msup> <mml:mrow> <mml:mn>10</mml:mn> </mml:mrow> <mml:mn>8</mml:mn> </mml:msup> </mml:mrow> </mml:math> m/s. The universe is filled with Yizi gas, the number density of Yizi can reach <mml:math display="inline"> <mml:mrow> <mml:mn>1.61</mml:mn> <mml:mo>×</mml:mo> <mml:msup> <mml:mrow> <mml:mn>10</mml:mn> </mml:mrow> <mml:mrow> <mml:mn>64</mml:mn> </mml:mrow> </mml:msup> </mml:mrow> </mml:math> /m3, and Yizi has no charge. After abandoning the idealism of physics, I try to construct a physical framework from three elementary particles: Protons, electrons, and Yizis. (The elementary particles mentioned here generally refer to the indivisible particles that constitute objects.) The effects of Yizi on the conversion of light, electricity, magnetism, mass, and energy as well as the strong nuclear and electromagnetic forces are emphasized. The gravitation of electromagnetic waves is measured using a Cavendish torsion balance. It is shown experimentally that electromagnetic waves not only produce pressure (repulsion) but also gravitational forces upon objects. The universe is a combination of three fundamental particles. Motion is eternal and follows the laws of conservation of energy and momentum. There is only one force: The magnitude of change in momentum per unit time for a group of particles traveling in one direction. Furthermore, this corresponds to the magnitude of the force that the group of particles exerts in that direction. From this perspective, all physical phenomena are relatively easy to explain.

scholarly journals Symmetry and the Arrow of Time in Theoretical Black Hole Astrophysics

2015 ◽  
Vol 2015 ◽  
pp. 1-5
Author(s):  
David Garofalo
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Active Galactic Nuclei ◽  
Accretion Disks ◽  
Time Reversal ◽  
Large Scale ◽  
Galactic Nuclei ◽  
Arrow Of Time ◽  
Time Symmetry ◽  
The Universe

While the basic laws of physics seem time-reversal invariant, our understanding of the apparent irreversibility of the macroscopic world is well grounded in the notion of entropy. Because astrophysics deals with the largest structures in the Universe, one expects evidence there for the most pronounced entropic arrow of time. However, in recent theoretical astrophysics work it appears possible to identify constructs with time-reversal symmetry, which is puzzling in the large-scale realm especially because it involves the engines of powerful outflows in active galactic nuclei which deal with macroscopic constituents such as accretion disks, magnetic fields, and black holes. Nonetheless, the underlying theoretical structure from which this accreting black hole framework emerges displays a time-symmetric harmonic behavior, a feature reminiscent of basic and simple laws of physics. While we may expect such behavior for classical black holes due to their simplicity, manifestations of such symmetry on the scale of galaxies, instead, surprise. In fact, we identify a parallel between the astrophysical tug-of-war between accretion disks and jets in this model and the time symmetry-breaking of a simple overdamped harmonic oscillator. The validity of these theoretical ideas in combination with this unexpected parallel suggests that black holes are more influential in astrophysics than currently recognized and that black hole astrophysics is a more fundamental discipline.

Principle of conservation of energy and modern theories

2020 ◽  
Vol 33 (4) ◽  
pp. 444-452
Author(s):  
H. Hamam
Keyword(s):  
Energy Conservation ◽  
Scientific Community ◽  
18Th Century ◽  
Scientific Progress ◽  
Modern History ◽  
Conservation Of Energy ◽  
The Cost ◽  
The Universe ◽  
Principle Of Energy Conservation

The famous quote of Antoine Laurent de Lavoisier (18th century) “Nothing is lost, nothing is created: everything is transformed” illustrates a principle that has marked minds throughout modern history. It deals with the principle of energy conservation. In our minds, energy is conserved in our world (in our dimensions). If part of the energy drifts out of our dimensions, this will contradict the statement “Nothing is lost.” If some energy penetrates our dimensions, this will contradict the statement “Nothing is created.” Everything is transformed within our dimensions. This article discusses the latest attempts through cosmic theories, still unverified, that have tried to explain the start and development of the universe even at the cost of concepts and principles unanimously agreed to date by the scientific community through the history, such as the principle of conservation of energy. This article raises some questions that we scientists must answer before we move forward. We must from time to time take a step back and have a critical look at our scientific progress before we branch off into a web of various theories.

Physics and Politics—an Old Analogy Revised

1928 ◽  
Vol 22 (1) ◽  
pp. 1-11 ◽  
Author(s):  
William Bennett Munro
Keyword(s):  
Nineteenth Century ◽  
Natural Science ◽  
New Physics ◽  
The Political ◽  
Conservation Of Energy ◽  
Half Century ◽  
Physical Knowledge ◽  
Basic Concepts ◽  
Inside Out ◽  
The Universe

It is just fifty-five years since Walter Bagehot wrote his Physics and Politics, a very suggestive book in its day. He began the first chapter of this book with a reference to “the sudden acquisition of much physical knowledge” which had marked the second half of the nineteenth century, and declared it his purpose to show the bearing of these new ideks upon the political conceptions of mankind. That purpose he, fulfilled with much ingenuity, pointing out the various lines along which the advance in natural science seemed to suggest modifications in the old theories of the state and of government.This was only a half-century ago; yet the new physics of Bagehot's day has already growh old. Its basic concepts have been turned inside out and upside down. Its laws relating to the indestructibility of mass and the conservation of energy have been radically amended. Even a generation ago the atom was held to be the ultimate and indivisible unit in the composition of the universe. It was the basis upon which the scientists of the nineteenth century built up an inclusive set of laws and principles relating to the structure of all creation. No one had ever seen an atom, but its existence could be postulated and its properties were held to be knowable.

The Early Years of the Royal Society

1960 ◽  
Vol 13 (4) ◽  
pp. 365-382
Author(s):  
Harold Spencer Jones
Keyword(s):  
Seventeenth Century ◽  
Royal Society ◽  
Early Years ◽  
Physical Basis ◽  
Mathematical Representation ◽  
The Sun ◽  
Ancient Greek ◽  
The Third ◽  
The Earth ◽  
The Universe

This year the Royal Society celebrates the third centenary of its foundation. In this paper Sir Harold Spencer Jones, the late Astronomer Royal, who was the Institute's first President, describes the early years of the Society and shows how closely some of its work was related to navigation.For some two thousand years, until well into the seventeenth century, the writings of the ancient Greek philosophers, and in particular those of Aristotle, were regarded as the supreme fountain of wisdom and the source of all knowledge. The break with the Aristotelian dogma may be said to have started with the publication by Copernicus in 1543 of his De Revolutionibus Orbium Coelestium whereby the Earth was displaced from proud position as the centre of the Universe, fixed and immovable, and asserted to be not only rotating around an axis but also to be merely one of a system of planets revolving around the Sun as a centre. Copernicus had refrained for thirty years from publishing his theory as he knew that it would be received with ridicule, not merely because it was not in accordance with Aristotelian dogma but also because it would be held to be against the Scriptures. The Copernican theory met, in fact, with widespread opposition and more than a century elapsed before it came to be generally accepted; for long it was regarded as merely a convenient mathematical representation of the motions of the planets without any true physical basis.

The BICEP2 data and a single Higgs-like interacting scalar field

2014 ◽  
Vol 23 (09) ◽  
pp. 1450075 ◽  
Author(s):  
Murli Manohar Verma ◽  
Shankar Dayal Pathak
Keyword(s):  
Dark Energy ◽  
Scalar Field ◽  
Gravity Waves ◽  
Field Potential ◽  
Thermodynamical Equilibrium ◽  
Conservation Of Energy ◽  
Order Of Magnitude ◽  
Acceleration Of The Universe ◽  
The Universe ◽  
Perturbed Equation

It is proposed that the recently announced BICEP2 value of tensor-to-scalar ratio r ~ 0.2 can be explained as containing an extra contribution from the recent acceleration of the universe. In fact this contribution, being robust, recent and of much longer duration (by a large order of magnitude) may dominate the contribution from the inflationary origin. In a possible scenario, matter (dark or baryonic) and radiation etc. can emerge from a single Higgs-like tachyonic scalar field in the universe through a physical mechanism not yet fully known to us. The components interact among themselves to achieve the thermodynamical equilibrium in the evolution of the universe. The field potential for the present acceleration of the universe would give a boost to the amplitude of the tensor fluctuations of gravity waves generated by the early inflation and the net effects may be higher than the earlier Planck bounds. In the process, the dark energy, as a cosmological constant decays into creation of dark matter. The diagnostics for the three-component, spatially homogeneous tachyonic scalar field are discussed in detail. The components of the field with perturbed equation of state (EoS) are taken to interact mutually and the conservation of energy for individual components gets violated. We study mainly the Om(x) diagnostics with the observed set of H(z) values at various redshifts, and the dimensionless statefinders for these interacting components. This analysis provides a strong case for the interacting dark energy in our model.

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