Grand Unified Theory: 3 Attempts

Einstein spent the last half of his life searching for a unified field theory as an extension of his General Theory of Relativity GR from 1916 describing the force of gravitation as an effect of curved space-time, to cover  all fundamental forces including electromagnetic and weak/strong nuclear forces. But the basic idea of describing forces as effects of curved space-time did not show to be fruitful. That was the first attempt to create a Grand Unified Theory GUT.  

The next attempt initiated in the 1950s was to extend quantum mechanics/electromagnetics QM/EM to cover also gravitation in the form of quantum gravity, but has not led to success. 

Modern physicists thus confront the following failed attempts of forming a GUT:

• A1: Extend GR to include QM/EM.
• A2: Extend QM/EM to include gravitation.

The reason A1 fails is that curved space-time does not serve to describe QM/EM. The reason A2 fails is that standard QM as atomic physics microscopics is viewed to be fundamentally different from the macroscopic world of gravitation, thus with a glitch between microscopics and macroscopics.  

This leaves modern physics in a dead-lock of incompatible theories for microscopics and macroscopics, which is the root of the present crisis of modern physics witnessed by many including prominent physicists. 

Here RealQM may offer a way forward, because in RealQM the microscopics of atoms takes the same form as macroscopics as continuum models in 3d, as exposed in previous posts. This means that a GUT may be possible in the form of 

• A3: RealQM + EM + gravitation  

captured in the following mathematical models:

• RealQM: New Schrödinger equation in 3d.
• EM: Maxwell's equations 
• Newton's law of gravitation

which can freely be combined into a GUT without glitch. Here Einstein has no role to play and the right part of the above diagram is left out.

While A1 and A2 have already failed, A3 has not yet. Want to challenge?