Quantum Tunneling in Flux Compactifications

Details Quantum Tunneling in Flux Compactifications Quantum Tunneling in Flux Compactifications

2009-04-20

arxiv.org/abs/0904.3106v2

JCAP 0912:006,2009

Physics

High Energy Physics

High Energy Physics - Theory

40 pages, 8 figures

Scientific paper

10.1088/1475-7516/2009/12/006

We identify instantons representing vacuum decay in a 6-dimensional toy model for string theory flux compactifications, with the two extra dimensions compactified on a sphere. We evaluate the instanton action for tunneling between different flux vacua, as well as for the decompactification decay channel. The bubbles resulting from flux tunneling have an unusual structure. They are bounded by two-dimensional branes, which are localized in the extra dimensions. This has important implications for bubble collisions.

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