Quantum Gravity and String Theory

1202 Submissions

[10] viXra:1202.0092 [pdf] submitted on 2012-02-29 08:49:40

Finite Nature Hypothesis and Space Roar Profile Prediction

Authors: David Brown
Comments: 3 Pages.

In 2006, a NASA team with Alan Kogut as principal investigator used a balloon-borne radiometer named ARCADE to measure the temperature of the cosmic microwave background (CMB) at centimeter wavelengths. ARCADE searched the sky for faint traces of heat from first generation stars in the very early universe, but ARCADE found a pervasive electromagnetic noise about 6 times louder than predicted. The NASA team named this pervasive electromagnetic noise “the space roar.” Highly speculative hypotheses based upon the failure of Einstein’s equivalence principle for virtual mass-energy might yield a way of testing the hypothesis that nature is finite and digital. The finite nature hypothesis might yield a Space Roar Profile Prediction suitable for empirical tests.
Category: Quantum Gravity and String Theory

[9] viXra:1202.0090 [pdf] submitted on 2012-02-29 03:12:02

Planck-Scale Physics: Facts and Beliefs

Authors: Diego Meschini
Comments: 14 Pages. Published in Foundations of Science, 12, 277-294, 2007.

The relevance of the Planck scale to a theory of quantum gravity has become a worryingly little examined assumption that goes unchallenged in the majority of research in this area. However, in all scientific honesty, the significance of Planck's natural units in a future physical theory of spacetime is only a plausible, yet by no means certain, assumption. The purpose of this article is to clearly separate fact from belief in this connection.
Category: Quantum Gravity and String Theory

[8] viXra:1202.0089 [pdf] submitted on 2012-02-29 03:26:28

Is Empty Spacetime a Physical Thing?

Authors: Diego Meschini, Markku Lehto
Comments: 23 Pages. Published in Foundations of Physics, 36, 1193-1216, 2006.

This article deals with empty spacetime and the question of its physical reality. By "empty spacetime" we mean a collection of bare spacetime points, the remains of ridding spacetime of all matter and fields. We ask whether these geometric objects -- themselves intrinsic to the concept of field -- might be observable through some physical test. By taking quantum-mechanical notions into account, we challenge the negative conclusion drawn from the diffeomorphism invariance postulate of general relativity, and we propose new foundational ideas regarding the possible observation -- as well as conceptual overthrow -- of this geometric ether.
Category: Quantum Gravity and String Theory

[7] viXra:1202.0088 [pdf] submitted on 2012-02-29 03:37:29

Geometry, Pregeometry and Beyond

Authors: Diego Meschini, Markku Lehto, Johanna Piilonen
Comments: 41 Pages. Published in Stud. in Hist. and Phil. of Mod. Phys., 36, 435-464, 2005.

This article explores the overall geometric manner in which human beings make sense of the world around them by means of their physical theories; in particular, in what are nowadays called pregeometric pictures of Nature. In these, the pseudo-Riemannian manifold of general relativity is considered a flawed description of spacetime and it is attempted to replace it by theoretical constructs of a different character, ontologically prior to it. However, despite its claims to the contrary, pregeometry is found to surreptitiously and unavoidably fall prey to the very mode of description it endeavours to evade, as evidenced in its all-pervading geometric understanding of the world. The question remains as to the deeper reasons for this human, geometric predilection--present, as a matter of fact, in all of physics--and as to whether it might need to be superseded in order to achieve the goals that frontier theoretical physics sets itself at the dawn of a new century: a sounder comprehension of the physical meaning of empty spacetime.
Category: Quantum Gravity and String Theory

[6] viXra:1202.0084 [pdf] submitted on 2012-02-28 05:06:39

A Metageometric Enquiry Concerning Time, Space, and Quantum Physics

Authors: Diego Meschini
Comments: 285 Pages. Ph.D. thesis, Department of Physics, University of Jyväskylä, 2008.

An enquiry into the physical nature of time and space and into the ontology of quantum mechanics from a metageometric perspective, resulting from the belief that geometric thought and language are powerless to farther understanding of these issues, restricting instead physical progress.

The nature and assumptions of quantum gravity are analysed critically, including misgivings about the relevance of the Planck scale to it and its lack of observational referent in the natural world.

The anthropic foundations of geometry are investigated. The exclusive use of geometric thought from antiquity to present-day physics is found to permeate all new attempts towards better theories, including quantum gravity and, within it, even pregeometry.

The problem of the ether is found to have perpetuated itself up to the present by transmuting its form from mechanical, through metric, to geometric.

A clarification is made of the physical, mathematical, and psychological foundations of relativity and quantum theories. The former is founded geometrically on measurement-based clock-reading separations ds. The latter is founded metageometrically on the experiment-based concepts of premeasurement and transition things, inspired in the physically unexplored aspect of time as a consciousness-related product. A concept of metageometric time is developed and coordinate time t is recovered from it. Discovery of the connection between quantum-mechanical metageometric time elements and general-relativistic clock time elements ds is deemed necessary for a combined understanding of time.

Time is conjectured to be the missing link between general relativity and quantum mechanics.

Category: Quantum Gravity and String Theory

[5] viXra:1202.0083 [pdf] submitted on 2012-02-27 09:23:44

Anomalous Gravitational Acceleration and the OPERA Neutrino Anomaly

Authors: David Brown
Comments: 2 Pages.

In September 2011, OPERA researchers observed muon neutrinos that seemed to travel faster than the speed of light, but in February 2012, re-analysis suggested that a loose fiber optic cable might have caused the problem. The explanation of the OPERA neutrino anomaly might have 3 alternatives: (1) There are one or more serious experimental errors. (2) Quantum field theory is slightly wrong. (3) General relativity theory is slightly wrong. Is alternative (3) known to be true? Overwhelming empirical evidence shows that Milgrom is the Kepler of modern cosmology. Combination of the ideas of Fernández-Rañada and Milgrom might explain the OPERA neutrino anomaly, because the GPS timing differs slightly from the predictions of general relativity theory.
Category: Quantum Gravity and String Theory

[4] viXra:1202.0064 [pdf] replaced on 2012-02-26 13:41:38

God and His Creation: the Universe

Authors: A. Garcés Doz
Comments: 91 Pages. Improving the translation from Spanish to English. Added a new subsection. Fixed minor errors

In this paper we demonstrate how the universe has to be caused or created by an intelligent being: God. And as the multiverse theory, mainly based on the random generation of states infinite universe is very poorly posed from the mathematical point of view, and how this failure leads to the demonstration of its impossibility. The anthropic principle called not taken into account, it is a mere philosophical statement without any physical-mathematical foundation, and therefore lacking the minimum necessary scientific validity. The main parameters are obtained: density of baryons, vacuum energy density, mass of the lightest Higgs boson, neutrino mass, mass of the graviton, among others. Deducting finally naturally within the theory, the inflation factor of the universe. Similarly, the theory implies necessarily the "creation" of matter
Category: Quantum Gravity and String Theory

[3] viXra:1202.0047 [pdf] replaced on 2014-02-17 15:35:27

Mathematical Foundations of the Relativistic Theory of Quantum Gravity

Authors: Fran De Aquino
Comments: 76 Pages.

Starting from the action function, we have derived a theoretical background that leads to the quantization of gravity and the deduction of a correlation between the gravitational and the inertial masses, which depends on the kinetic momentum of the particle. We show that the strong equivalence principle is reaffirmed and, consequently, Einstein's equations are preserved. In fact, such equations are deduced here directly from this new approach to Gravitation. Moreover, we have obtained a generalized equation for the inertial forces, which incorporates the Mach's principle into Gravitation. Also, we have deduced the equation of Entropy; the Hamiltonian for a particle in an electromagnetic field and the reciprocal fine structure constant directly from this new approach. It was also possible to deduce the expression of the Casimir force and to explain the Inflation Period and the Missing Matter, without assuming existence of vacuum fluctuations. This new approach to Gravitation will allow us to understand some crucial matters in Cosmology.
Category: Quantum Gravity and String Theory

[2] viXra:1202.0041 [pdf] replaced on 2013-11-29 11:46:28

The Universal Quantum Fluid

Authors: Fran De Aquino
Comments: 8 Pages.

The quantization of gravity showed that the matter is also quantized, and that there is an elementary quantum of matter, indivisible, whose mass is 3.9 X 10-73kg. This means that any body is formed by a whole number of these particles (quantization). It is shown here that these elementary quanta of matter should fill all the space in the Universe forming a Quantum Fluid continuous and stationary. In addition, it is also explained why the Michelson-Morley experiment was not able to detect this Universal Quantum Fluid.
Category: Quantum Gravity and String Theory

[1] viXra:1202.0011 [pdf] replaced on 2012-02-07 17:52:50

Accelerating Universe and the Expanding Atom-2

Authors: U.V. S. Seshavatharam, S. Lakshminarayana
Comments: 15 Pages.

In the cosmic Euclidean volume, inverse of the fine structure ratio is equal to the natural logarithm of ratio of number of (electrons or positrons) and the Avogadro number. Bohr radius of hydrogen atom, quanta of the angular momentum and the strong interaction range - are connected with the large scale structure of the massive universe. In the accelerating universe, as the space expands, in hydrogen atom, distance between proton and electron increases and is directly proportional to the size of the universe. Obtained value of the present Hubble constant is 70.75 Km/sec/Mpc. `Rate of decrease in fine structure ratio' is a measure of cosmic rate of expansion. Considering the integral nature of number of protons (of any nucleus), integral nature of `hbar' can be understood.
Category: Quantum Gravity and String Theory