Diluting Gravity with Compact Hyperboloids

Details Diluting Gravity with Compact Hyperboloids Diluting Gravity with Compact Hyperboloids

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001cosm.conf..229t&link_type=abstract

COSMO-2000 . Proceedings of the Fourth International Workshop on Particle Physics and the Early Universe . Held 4-8 September 20

Physics

Scientific paper

I give a brief informal introduction to the idea and tests of large extra dimensions, focusing on the case in which the space-time manifold has a direct product structure. I then describe some attractive implementations in which the internal space comprises a compact hyperbolic manifold. This construction yields an exponential hierarchy between the usual Planck scale and the true fundamental scale of physics by tuning only { O} (1) coefficients, since the linear size of the internal space remains small. In addition, this allows an early universe cosmology with normal evolution up to substantial temperatures, and completely evades astrophysical constraints.

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