Constraints on extra dimensions from cosmological and terrestrial measurements

Abstract

If quantum fields exist in extra compact dimensions, they will give rise to a quantum vacuum or Casimir energy. That vacuum energy will manifest itself as a cosmological constant. The fact that supernova and cosmic microwave background data indicate that the cosmological constant is of the same order as the critical mass density to close the universe supplies a lower bound on the size of the extra dimensions. Recent laboratory constraints on deviations from Newton's law place an upper limit. The allowed region is so small as to suggest that either extra compact dimensions do not exist, or their properties are about to be tightly constrained by experimental data.

9 pages, no figures, REVTeX. Revised version contains clarifications and added references

References in corpus (3)

• New Supernova Limit on Large Extra Dimensions
• Cosmological Constraints on Large Extra Dimensions
• Constraints on extra dimensions from cosmological and terrestrial measurements

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