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Conformally Invariant Brane-universe and the Cosmological Constant

E. I. Guendelman·E. Spallucci
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Abstract

A relativistic 3-brane can be given a conformally invariant, gauge-type, formulation provided the embedding space is six-dimensional. The implementation of conformal invariance requires the use of a modified measure, independent of the metric in the action. A brane-world scenario without the need of a cosmological constant in 6D can be constructed. Thus, no ``old'' cosmological constant problem appears at this level.

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E. I. Guendelman, E. Spallucci. 2004-02-24. Conformally Invariant Brane-universe and the Cosmological Constant. https://doi.org/10.1142/9789812704030_0134

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