Physical Interpretation of Compactified Dimensions?

In summary, string theory's compactified dimensions are believed to represent the permissible evolution space of a given string, outside of our visual 3 space dimensions and one time dimension. These dimensions may also be so small that they cannot be penetrated by anything except possibly high frequency gravity waves, which could potentially lead to the existence of a multiverse. While the theory is not yet falsifiable, it continues to receive attention as scientists search for a Theory of Everything.
  • #1
233
5
Do string theory’s compactified dimensions have a predicted physical interpretation? Do they for example represent the space/planes/domains in which a string ‘lives’? That is, the local permissible evolution space of a given string?IH
 
Physics news on Phys.org
  • #2
One dimension open or closed strings vibrate in 10 dimensions, at least mathematically. The later M Theory had 11 dimensions. Outside of our visual 3 space dimensions and one time dimensions may lie the other 6 or 7 compact dimensions that if they exist, they maybe so small , Planck length order of magnitude, that nothing, nor even light and gamma rays, can penetrate them. Nothing, that is , except possible high frequency gravity waves with wave lengths so small that makes them possible to enter them and beyond to the postulated multiverse (other Branes) by way of black holes. This is all postulated, the Theory may not be falsifiable, but much attention will be focused on M theory and quantum gravity in the decades ahead, as the search continues for a Theory of Everything to unlock the universes darkest secrets. Maybe. And that's about all I know from the readings.
 

1. What is the concept of compactified dimensions?

Compactified dimensions are additional dimensions that are theorized to exist beyond the three dimensions of space and one dimension of time that we experience in our everyday lives. These dimensions are believed to be "compact" or curled up in a very small scale, making them undetectable to us.

2. How are these compactified dimensions related to string theory?

In string theory, which is a theoretical framework that attempts to explain the fundamental forces and particles of the universe, the existence of compactified dimensions is necessary for the equations to work. It is believed that the strings in string theory can vibrate in these compact dimensions, affecting the behavior of the particles in our observable dimensions.

3. Can we observe or detect these compactified dimensions?

Currently, there is no experimental evidence for the existence of compactified dimensions. However, some theories, such as Kaluza-Klein theory, suggest that the effects of these dimensions may be observable at very high energies, such as those found in particle accelerators.

4. How many compactified dimensions are there?

The number of compactified dimensions varies depending on the specific theory or model being used. In string theory, there are typically six or seven compactified dimensions, while in other theories there may be more or less.

5. What is the significance of compactified dimensions in our understanding of the universe?

The concept of compactified dimensions is important in our quest to understand the fundamental nature of the universe. It offers a potential explanation for the unification of the four fundamental forces (gravity, electromagnetism, strong nuclear force, and weak nuclear force) and provides a way to reconcile theories that seem incompatible, such as quantum mechanics and general relativity.

Suggested for: Physical Interpretation of Compactified Dimensions?

Replies
2
Views
2K
Replies
2
Views
1K
Replies
5
Views
2K
Replies
3
Views
2K
Replies
3
Views
1K
Replies
19
Views
2K
Replies
4
Views
2K
Replies
2
Views
2K
Replies
4
Views
2K
Back
Top