Relativity and Cosmology

   

Noncommutative Geometry of Ads Coordinates on a D-Brane

Authors: Lawrence B. Crowell

In this short paper the noncommutative geometry and quantization of branes and the AdS is discussed. The question in part addresses an open problem left by this author in [1] on how branes are generated by stringy physics. The breaking of an open type I string into two strings generates a nascent brane at the new endpoints with inflationary cosmologies. This was left as a conjecture at the end of this paper on the role of quantum critical points in the onset of inflationary cosmology. The noncommutative geometry of the clock and lapse functions for the AdS-brane are derived as is the number of degrees of freedom which appear. The role of the AdS spacetime, or in particular its boundary, in cosmology is discussed in an elementary regularization scheme of the cosmological constant on the boundary. This is compared to schemes of conformal compactification of the AdS spacetime and the Heisenberg group.

Comments: 11 Pages. Paper also appears in http://arxiv.org/abs/1207.1046v1

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Submission history

[v1] 2012-07-17 11:28:15

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