Document Type

Article

Publication Date

1-22-2008

Publication Title

Physical Review Letters

Abstract

An effective quantum theory of gravitation in which gravity weakens at energies higher than ∼10−3  eV is one way to accommodate the apparent smallness of the cosmological constant. Such a theory predicts departures from the Newtonian inverse-square force law on distances below ∼0.05  mm. However, it is shown that this modification also leads to changes in the long-range behavior of gravity and is inconsistent with observed gravitational lenses.

DOI

10.1103/PhysRevLett.100.031301

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