Quantum Gravity and String Theory

    

The Assumption of a Continuous Lorentzian Spacetime Manifold in Quantum Gravity

Authors: René Friedrich

Spacetime is more and more often suspected of being at the origin of the problem of quantum gravity, and it is said that the concept of spacetime needs to be revised.In this paper, we want to provide the concrete reason why the Lorentzian spacetime manifold is not compatible with quantum gravity, by showing that it is a man-made artefact: unlike the Euclidean metric, no Lorentzian pseudometric is able to span up a real-valued manifold. This is why - since its introduction with Minkowski's famous lecture "Space and time" and until today - Lorentzian manifolds require always the addition of a second metric in order to override the appearance of negative squares and of imaginary values.This artificial "patchwork" of two opposite metrics is not only incompatible with quantum mechanics, it is even contradicting the very principles of general relativity.

Comments: 6 Pages.

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Submission history

[v1] 2022-11-04 01:24:31
[v2] 2022-11-22 19:30:42

Unique-IP document downloads: 226 times

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