AdS / CFT and gravity

  title={AdS / CFT and gravity},
  author={Steven S. Gubser},
The radiation-dominated k = 0 FRW cosmology emerges as the induced metric on a codimension one hypersurface of constant extrinsic curvature in the five-dimensional AdS-Schwarzschild solution. That we should get FRW cosmology in this way is an expected result from AdS/CFT in light of recent comments regarding the coupling of gravity to “boundary” conformal field theories. I remark on how this calculation bears on the understanding of Randall and Sundrum’s “alternative to compactification.” A… CONTINUE READING
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