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ehrenfest
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Homework Statement
Are the branes in Figure 14.2 supposed to be coincident even though they are manifestly not in the drawing?
The paragraph beginning with the word 'Suppose' describes the figure and does not imply that the the branes are coincident. Then the next paragraph supposes that they are. The second paragraph implies (to me at least) that the first paragraph describes the case where the branes are not coincident. I would also say that the figure can be used to clarify both situations as long as you suppose that in the second case, the branes are coincident even though they are not drawn that way.ehrenfest said:Are the branes in Figure 14.2 supposed to be coincident even though they are manifestly not in the drawing?
Coincident branes are two or more branes that overlap in the same region of spacetime. In other words, they share the same spatial coordinates in a given dimension. This can occur in theories of extra dimensions or in brane cosmology.
The Figure in Zwiebach Ch 14.2 Homework illustrates the configuration of coincident branes in spacetime. It helps to visualize the concept of brane overlap and how it affects the dynamics of the branes.
Coincident branes can cause distortions in the geometry of spacetime, depending on their relative tension and orientation. This can lead to the creation of new dimensions or the warping of existing ones.
It is possible for coincident branes to exist in our observable universe, especially in theories involving extra dimensions. However, their effects may be difficult to detect or observe directly.
There is no direct connection between coincident branes and parallel universes. However, some theories suggest that the existence of multiple branes in a higher-dimensional space could give rise to parallel universes with different physical laws and properties.