Quantum tunneling in flux compactifications

被引：58

作者：

Blanco-Pillado, Jose J. ^{[1
]}

Schwartz-Perlov, Delia ^{[1
]}

Vilenkin, Alexander ^{[1
]}

机构：

[1] Tufts Univ, Dept Phys & Astron, Inst Cosmol, Medford, MA 02155 USA

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2009年 / 12期

基金：

美国国家科学基金会;

关键词：

cosmology with extra dimensions; inflation; string theory and cosmology; cosmological applications of theories with extra dimensions; COSMOLOGICAL CONSTANT; FALSE VACUUM; P-BRANES; UNIVERSE; NEUTRALIZATION; NUCLEATION; INFLATION; CREATION; DECAY; FATE;

D O I：

10.1088/1475-7516/2009/12/006

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页数：32

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