It is shown that in supergravity, under a very reasonable ansatz, the observable spacetime must be 4‐dimensional. The spacetime dimensionality, for the first time, is proven from the First Principle, instead of the Anthropic Principle.
Topics
General relativity
This content is only available via PDF.
© 2008 American Institute of Physics.
2008
American Institute of Physics
You do not currently have access to this content.