Grand Unified Theories Class of theories describing the behavior of the single force that results from unification of the strong, weak, and electromagnetic forces in the early universe.
grand unified theories (GUTs): Theories that attempt to unify (describe in a similar way) the electromagnetic, weak, and strong forces of nature.
Grand Unified Theories predict that three of the four basic forces of nature"electromagnetism and the strong and weak nuclear forces"are in reality aspects of a single all-encompassing "superforce" (See More Precisely 27-1.) However, ...
While grand unified theories attempt to describe three of the four known interactions of nature - the weak, strong, and electromagnetic interactions - in a unified way, the fourth interaction, gravity, is omitted.
In the context of grand unified theories, the hierarchy problem is our inability to understand theoretically why the energy scale at which the unification becomes apparent, about 1016 GeV (billion electron volts), ...
This was a problem with Grand Unified Theories, popular in the 1970s and 1980s, which proposed that at high temperatures (such as in the early universe) the electromagnetic force, ...
For example, one can apply the current understanding of grand unified theories (GUTs) - both quasi-classical (such as general relativity) and modern (such as quantum gravity, superstring, and M-theories) - to these three primary cosmogonic paradoxes ...
Grand unified theories generally predict that proton decay should take place, although experiments so far have only resulted in a lower limit of 1035 years for the proton's lifetime.
According to Grand Unified Theories (GUT), the strong nuclear and electroweak forces will behave as a single unified force at particle energies in excess of ~1024 eV (~1012 times higher than achievable experimentally).
of everything requires that the coupling constants of the four forces meet at one point under renormalization group rescaling. This is also a falsifiable statement, but it is not restricted to string theory, but is shared by grand unified theories..
Theories that describe the conditions when the forces were unified are called Grand Unified Theories (GUTs for short).
 See also: Energy, Time, Field, Light, Model
|
