Quantum Gravity and String Theory

2301 Submissions

[8] viXra:2301.0155 [pdf] submitted on 2023-01-31 01:10:29

Gravitational Bootstrap, S-matrix, Superstrings, and The Plausible Unphysicality of Gravitons

Authors: Stephane H. Maes
Comments: 17 Pages. All related details of the projects (and updates) can be found and followed at https://shmaesphysics.wordpress.com/shmaes-physics-site-navigation/.

Historically, string theory was the result of modeling amplitude scattering for hadronic physics, then discovering that it contains a spin-2 massless boson reminiscent of the graviton. Adding conformal conditions, General relativity and Yang Mills field equations can be recovered in a 10D universe, as a supersymmetric theory. This evolution implies that superstrings are derived from the bootstrap and string theory, and that, therefore, recent claims of range compatibilities between superstring results and gravitational bootstrap are actually expected and not the surprise, or divine sign of nature, that some have claimed. In fact pursuing the reasoning, also inspired from our multi-fold theory work, we conclude also that indeed superstrings is the only theory that satisfies sufficiently well-defined, essentially non perturbative, gravitational bootstrap. While this may sound like a resounding confirmation of string theory, we then discussed why it might not be so, but instead emphasize that conventional gravitons, susceptible to scattering modeled with S-matrices, simply do not exist in any other consistent theory of quantum gravity like QFT-based gravity, LQG, Causal set sand other reconstructive theories. In particular, this is confirmed in the Multi-fold theory. We take it as a hint that much of the challenges encountered in quantum gravity may come from gravitons not existing. As a result, we continue to argue string challenges to the physicality of superstrings, now also including the physicality of gravity.The paper introduces a few theorems on gravitational bootstraps and gravitons and a new notion of quasiparticles, when the theory is not non-perturbatively renormalizable.
Category: Quantum Gravity and String Theory

[7] viXra:2301.0144 [pdf] submitted on 2023-01-28 02:03:40

"Graviton Gas", at Start of Pre Planckian to Just Before Planckian Regimes, Suggesting Gravitational Quantum Pressure

Authors: Andrew W. Beckwith
Comments: 10 Pages.

Using particle density’ of a ‘graviton gas. For volume in space time for showing pressure formation. The radius would be, r(t) approximately Planck length, whereas the change in would be a decrease from the mass, M of the black holes, Pre Planck (very large), to the tiny micro sized black holes of the order of Planck mass, i.e. a down grading of mass from about 10^60 grams to say 10^5 grams with millions of micro black holes, Plank mass or above
Category: Quantum Gravity and String Theory

[6] viXra:2301.0116 [pdf] submitted on 2023-01-22 23:21:45

Comparison of Inertial Frame of Reference in 5D L3T2 Vs. 4D L3T1 Envelopes Misconception Between E=mc2 and E=hf

Authors: Manfred U. E. Pohl
Comments: 4 Pages.

It has been worked out that the circle number connects space and time : space-time is 5 dimensional, i.e. comprises three space and two time dimensions : L3 and T2. An experiment was suggested and confirmed the predicted phenomenon that π = Unit of time / Unit of length. (Speed of light is given by rotation of earth). Here a short geometrical comparison of a Inertial Frame of Reference in 5D L3T2 vs. 4D L3T1 is given. It is found that E= mc2 and e=hf can be derived geometrically from 5D Space-time, but are incompatible. It is shown in geometry, why quantum theory and general relativity are incompatible and how this can be remedied.
Category: Quantum Gravity and String Theory

[5] viXra:2301.0115 [pdf] submitted on 2023-01-23 00:47:27

The Generic Action Principles of Conformal Supergravity

Authors: Boris Stoyanov
Comments: 27 Pages.

All N = 4 conformal supergravities in four space-time dimensions are constructed. These are theonly N = 4 supergravity theories whose actions are invariant under off-shell supersymmetry. Theyare encoded in terms of a holomorphic function that is homogeneous of zeroth degree in scalarfields that parametrize an SU(1, 1)/U(1) coset space. When this function equals a constantthe Lagrangian is invariant under continuous SU(1, 1) transformations. Based on the knownnon-linear transformation rules of the Weyl multiplet fields, the action of N = 4 conformalsupergravity is constructed up to terms quadratic in the fermion fields. The bosonic sectorcorrects a recent result in the literature. The construction of these higher-derivative invariantsalso opens the door to various applications for non-conformal theories.
Category: Quantum Gravity and String Theory

[4] viXra:2301.0100 [pdf] submitted on 2023-01-19 03:42:08

Causality and Arrow of Time in 5-Dimensional Space-Time

Authors: Manfred U. E. Pohl
Comments: 7 Pages.

So far (1234) it has been worked out that the circle number connects space and time and spacetime is 5 dimensional, i.e. comprises three space and two time dimensions. This was alsoconfirmed experimentally and proved that Einstein's postulate of constant speed of light isflawed, since the speed of light maps the Earth's rotation and must be given as a constant in theunit [m^2/s]. Here it will be briefly illuminated how the causality principle behaves in two timedimensions and what implications the existence of two time dimensions in nature results for the "arrow of time". It is also briefly shown in which relation the speed of light is with Kepler'slaws and how the connection E=mc^2 can be derived from Kepler's laws .
Category: Quantum Gravity and String Theory

[3] viXra:2301.0036 [pdf] submitted on 2023-01-06 00:32:50

Oops For The Loops II: Real Oops; LQG Does Not Optimize the Hilbert Einstein Action

Authors: Stephane H. Maes
Comments: 16 Pages. All related details of the projects (and updates) can be found and followed at https://shmaesphysics.wordpress.com/shmaes-physics-site-navigation/.

This paper is an evolution of "Oops for the Loops". As such it overlaps and repeats the first few sections of the original paper, and then, adds a new section, demonstrating the issues. This is to ensure that the analysis reaches best the audience of interest, not mixing issues. The analysis also resulted from work done on the multi-fold theory which resulted into a proposal from multi-fold mechanisms.The multi-fold theory obvious overlaps with, and relates to other theories like superstrings, and quantum gravity e.g.., Loop Quantum Gravity (LQG). Considerations about some of these other theories have been published, including lessons learned and recommendations to fill gaps, or address issues in strings, QFT and LQG. Our initial analysis of LQG focused more on similarities and the gap of particles and entanglement modeling. We had not yet encountered an analysis, unrelated to the multi-fold theory, which argues that there would be a technical error in LQG quantization scheme, which may also explain why LQG does not seem to be able to recover GR, and a classical smooth spacetime so far. The paper "Oops for the Loops" pointed out and amplified the arguments against the LQG approach encountered so far. The original new contribution, of this paper, illustrates how the LQG quantization scheme does not extremize the Hilbert Einstein Action, even under the classical expectations of (pseudo)Riemannian geometry. Hence the need for amendments to the approach that the LQG community must be investigated, before LQG can be trusted as a suitable model for many aspects of quantum gravity. A proposal to that effect is sketched in another paper published in parallel, in the same time frame.
Category: Quantum Gravity and String Theory

[2] viXra:2301.0034 [pdf] submitted on 2023-01-04 07:32:04

On Born Reciprocal Relativity, Algebraic Extensions of the Yang and Quaplectic Algebra, and Noncommutative Curved Phase Spaces

Authors: Carlos Castro
Comments: 24 Pages.

After a brief introduction of Born's reciprocal relativity theory is presented, we review the construction of the deformed Quaplectic group that is given by the semi-direct product of U (1,3) with the deformed (noncommutative) Weyl-Heisenberg group corresponding to noncommutative fiber coordinates and momenta $ [ X_a, X_b ] ot= 0$; $[ P_a, P_b ] ot=0$. This construction leads to more general algebras given by a two-parameter family of deformations of the Quaplectic algebra, and to further algebraicextensions involving antisymmetric tensor coordinates and momenta of higher ranks $ [ X_{a_1 a_2 cdots a_n}, X_{b_1 b_2 cdots b_n} ] ot= 0$; $[ P_{a_1 a_2 cdots a_n}, P_{b_1 b_2 cdots b_n} ] ot=0$. We continue by examining algebraic extensions of the Yang algebra in extended noncommutative phase spaces and compare them with the above extensions of the deformed Quaplectic algebra. A solution is found for the exact analytical mapping of the non-commuting $ x^mu, p^mu$ operator variables (associated to an $8D$ curved phase space) to the canonical $ Y^A, Pi^A$ operator variables of a flat $12D$ phase space. We explore the geometrical implications of this mapping which provides, in the $classical$ limit, with the embedding functions $ Y^A (x,p), Pi^A (x,p) $ of an $8D$ curved phase space into a flat $12D$ phase space background. The latter embedding functions determine the functional forms of the base spacetime metric $ g_{mu u} (x,p) $, the fiber metric of the vertical space $h^{ab}(x,p)$, and the nonlinear connection $N_{a mu} (x,p) $ associated with the $8D$ cotangent space of the $4D$ spacetime. Consequently, one has found a direct link between noncommutative curved phase spaces in lower dimensions to commutative flat phase spaces in higher dimensions.
Category: Quantum Gravity and String Theory

[1] viXra:2301.0003 [pdf] replaced on 2023-03-27 15:06:55

On Extension of Einstein Field Equations

Authors: Tomasz Kobierzycki
Comments: 7 Pages.

In this paper I will explore how extension of Einsteinfield equation can lead to new equation that can be important wayof looking at gravity. I do not present solutions to field equationsonly framework and reasoning behind it. Equation states thatmatter and gravity field are same thing seen from two point of view.Matter just like gravity field is extended in space-time.
Category: Quantum Gravity and String Theory