Quantum Gravity and String Theory

1006 Submissions

[5] viXra:1006.0064 [pdf] submitted on 26 Jun 2010

A Clifford Algebra Realization of Supersymmetry and Its Polyvector Extension in Clifford Spaces

Authors: Carlos Castro
Comments: 15 pages, submitted to Foundations of Physics.

It is shown explicitly how to construct a novel (to our knowledge) realization of the Poincare superalgebra in 2D. These results can be extended to other dimensions and to (extended) superconformal and (anti) de Sitter superalgebras. There is a fundamental difference between the findings of this work with the other approaches to Supersymmetry (over the past four decades) using Grassmannian calculus and which is based on anti-commuting numbers. We provide an algebraic realization of the anticommutators and commutators of the 2D super-Poincare algebra in terms of the generators of the tensor product Cl1,1(R) x A of a two-dim Clifford algebra and an internal algebra A whose generators can be represented in terms of powers of a 3 x 3 matrix Q, such that Q3 = 0. Our realization differs from the standard realization of superalgebras in terms of differential operators in Superspace involving Grassmannian (anticommuting) coordinates θα and bosonic coordinates xμ. We conclude in the final section with an analysis of how to construct Polyvector-valued extensions of supersymmetry in Clifford Spaces involving spinor-tensorial supercharge generators Qμ1μ2.....μn and momentum polyvectors Pμ1μ2....μn. Clifford-Superspace is an extension of Clifford-space and whose symmetry transformations are generalized polyvector-valued supersymmetries.
Category: Quantum Gravity and String Theory

[4] viXra:1006.0063 [pdf] submitted on 25 Jun 2010

A More Natural Reference Model Integrating Relativity and Quantum Mechanics

Authors: J Gregory Moxness
Comments: 28 pages, 1 figure, Latex. Original ideas from 1997, latest modifications Nov 22, 2007.

M Theory and/or Loop Quantum Gravity hold the promise of resolving the conflict between general relativity and quantum mechanics but lack experimental connections to predictability in physics. A connection is made to these and other theories vying for the title of a "Theory of Everything" by questioning the value of the traditional Planck unit reference point for the scales at which they operate. It also suggests a cosmological model which has acceleration as being fundamental. It provides for an intuitive understanding of the Standard Model and its relationship to particle masses and the structure of the atom. The prediction of particle mass and lifetimes is a good indicator for its validity.
Category: Quantum Gravity and String Theory

[3] viXra:1006.0027 [pdf] replaced on 2013-05-11 23:16:33

Inquiry As To If Higher Dimensions Can Be Used to Unify DM and DE, If Massive Gravitons Are Stable

Authors: Andrew Beckwith
Comments: 5 Pages.

The following questions are raised in this document. First, can there be a stable (massive) graviton? If so, does this massive graviton, as modeled by KK DM, with a modification of slight 4 dimensional space mass, contribute to DE, at least in terms of re acceleration ? The answer, if one assumes that the square of a frequency for graviton mass is real valued and greater than zero appears to be affirmative. The author, when considering a joint DM – DE model finds evidence that re acceleration of the universe one billion years ago in a higher dimensional setting can be justified in terms of a slight modification of standard KK DM models, if one considers how an information exchange between present to prior universes occurs, which the author thinks mandates more than four dimensional space time geometry.
Category: Quantum Gravity and String Theory

[2] viXra:1006.0012 [pdf] submitted on 7 Jun 2010

No-Time-Dilation Corrected Supernovae 1a and GRBs Data and Low-Energy Quantum Gravity

Authors: Michael A. Ivanov
Comments: 5 pages, 2 figures, Latex. Poster contribution to the VI Int. Workshop on the Dark side of the Universe (DSU2010), Guanajuato U., Leon, Mexico, 1-6 June, 2010.

Earlier it was shown that in the model of low-energy quantum gravity by the author, observations of Supernovae 1a and GRBs, which are corrected by observers for characteristic for the standard cosmological model time dilation, may be fitted with the theoretical luminosity distance curve only up to z ~ 0:5; for higher redshifts the predicted luminosity distance is essentially bigger. The model itself has not time dilation due to another redshift mechanism. It is shown here that a correction of observations for no time dilation leads to a good accordance of observations and theoretical predictions for all achieved redshifts.
Category: Quantum Gravity and String Theory

[1] viXra:1006.0005 [pdf] replaced on 13 Feb 2011

Spacetime Deformations Theory

Authors: Jacek Safuta
Comments: 11 pages

The spacetime deformations concept proposes a road to unification of general relativity and quantum mechanics i.e. unifies all interactions, answers the questions: why particles have mass and what they are, answers the question: what is energy and dark energy, unifies force fields and matter, implies new theories like the spacetime deformations evolution. I propose a new definition of matter and energy however not contradictory to current theories but totally contradictory to everyday experience. The new quality here is that the definition is supposed to be free of human being's perception and as far as possible also free of our language and culture limitations. I present also some points of view on computability of the actual Universe. This is a concept of principle (an universal concept delivering a description of nature) and not constructive one (describing a particular phenomenon using specific equations). The concept is background independent (the space has no fixed geometry).
Category: Quantum Gravity and String Theory