Quantum Gravity and String Theory

   

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

Authors: Stephane H. Maes

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.

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/.

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Submission history

[v1] 2023-01-06 00:32:50

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