Physical Review Letters
An Alternative to Compactification
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Abstract
Conventional wisdom states that Newton's force law implies only four noncompact dimensions. We demonstrate that this is not necessarily true in the presence of a nonfactorizable background geometry. The specific example we study is a single 3-brane embedded in five dimensions. We show that even without a gap in the Kaluza-Klein spectrum, four-dimensional Newtonian and general relativistic gravity is reproduced to more than adequate precision.
DOI: 10.1103/physrevlett.83.4690 · Publisher: American Physical Society (APS)