Spontaneous Physical Compactification of the Extra Dimensions

Details Spontaneous Physical Compactification of the Extra Dimensions Spontaneous Physical Compactification of the Extra Dimensions

2001-04-16

arxiv.org/abs/hep-th/0104134v2

Mod.Phys.Lett. A16 (2001) 2327-2334

Physics

High Energy Physics

High Energy Physics - Theory

Latex, 7 pages, corrected typo in the footnote

Scientific paper

10.1142/S0217732301005941

We conjecture that the extra dimensions are physical non-compact at high energy scale or high temperature; after the symmetry breaking or cosmological phase transition, the bulk cosmological constant may become negative, and then, the extra dimensions may become physical compact at low energy scale. We show this in a five-dimensional toy brane model with three parallel 3-branes and a real bulk scalar whose potential is temperature dependent. We also point out that after the global or gauge symmetry breaking, or the supersymmetry breaking in supergravity theory, the spontaneous physical compactification of the extra dimensions might be realized.

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