What does string theory say about dimensions?

What does string theory say about dimensions?

String theories require extra dimensions of spacetime for their mathematical consistency. In bosonic string theory, spacetime is 26-dimensional, while in superstring theory it is 10-dimensional, and in M-theory it is 11-dimensional.

What happened string theory?

Ultimately, baryonic string theory died for two reasons. First, it made predictions that disagreed with experiments. This new theory, called quantum chromodynamics, or QCD, today remains our theory of the strong nuclear force. And as for string theory, it mostly faded into the background.

How many dimensions does string theory predict?

10 dimensions
Current versions of string theory require 10 dimensions total, while an even more hypothetical über-string theory known as M-theory requires 11. But when we look around the universe, we only ever see the usual three spatial dimensions plus the dimension of time.

Is string theory mathematically proven?

No one has proved the swampland conjecture, and several string theorists still expect that the final form of the theory will have no problem with inflation. But many believe that although the conjecture might not hold up rigidly, something close to it will.

What is 5th dimension in interstellar?

The 5th dimension is gravity. It says so in the movie and it is something that can be manipulated by the advanced beings.

What is the fundamental dimension of electric charge?

electrical charge is a fundamental dimension by itself and it is not derived from any other fundamental units. but still some physicists do not recognize electric charge, Q, as a separate fundamental dimension of physical quantity, since it has been expressed in terms of mass, length, and time in unit systems such as the cgs system i.e.

What is the charge of a string in string theory?

Electric charge in string theory. The mass of an elementary particle in string theory is related with the way the string vibrates. The more frantically a string vibrates the more energy it posses and hence the more massive it is.

How is the mass of an elementary particle described in string theory?

The mass of an elementary particle in string theory is related with the way the string vibrates. The more frantically a string vibrates the more energy it posses and hence the more massive it is. My question is how is the electric charge of a particle is described in S.T.

What is gauge symmetry in string theory?

In quantum field theory and its extensions including string theory, the electric charge is a generator of a U(1) symmetry which should be promoted to a local symmetry i.e. gauge symmetry. In string theory, the U(1) symmetry and the gauge field often appear as parts of the low-energy effective action.