Quantum Gravity and String Theory

    

Quantum Gravity by Elimination of Spacetime

Authors: René Friedrich

A new approach is presented here for quantum gravity, and for the question why curved spacetime is not compatible with quantum mechanics. The answer: Curved spacetime is not fundamental because it is not Lorentz-invariant. We show that Lorentz-covariant spacetime is only the way how the universe of general relativity is perceived and measured by observers, it is a sort of projection. The underlying unobservable universe of quantum gravity is Lorentz-invariant, it is easy to retrieve, and it provides Lorentz-invariant concepts for 1. time, 2. worldlines, 3. space, 4. velocity, 5. fields and 6. gravity.

Comments: 6 Pages. Essay written for the Gravity Research Foundation 2021 Awards for Essays on Gravitation.

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[v1] 2021-06-03 15:23:20

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