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An alternative to compactification. (English) Zbl 0946.81074

Summary: 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.

MSC:

81T99 Quantum field theory; related classical field theories
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