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arXiv 1409.8401hep-thhep-ph
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用膜动力学稳定额外维度

Towards the stabilization of extra dimensions by brane dynamics

Noriaki Kitazawa

摘要:

从弦论导出的所有基本粒子及其相互作用的模型都包含一个紧致的六维内部空间。它的体积和形状应该是固定的或稳定的,因为否则反映它们变形的无质量标量场(模量)就会出现在我们的四维时空中,对已知的粒子和场产生相当大的影响。我们提出了一个策略,稳定的紧凑空间没有通量的三形式字段从封闭的字符串。我们的主要动机和目标是尽可能在传统弦世界片理论中进行。我们将看到,具有磁通量的D-膜(“磁化的D-膜”)和它们之间的力可以用于这一目的。我们在这里研究了一些必要的成分:磁化D膜之间的开弦单圈真空振幅,固定在轨道奇点的磁化D膜,以及在紧致空间中这些D膜之间的势能,这些势能是由树水平的闭弦交换产生的。

英文摘要:

All the models of elementary particles and their interactions derived from String Theory involve a compact six-dimensional internal space. Its volume and shape should be fixed or stabilized, since otherwise massless scalar fields (moduli) reflecting their deformations appear in our four-dimensional space-time, with sizable effects on known particles and fields. We propose a strategy towards stabilizing the compact space without fluxes of three-form fields from closed strings. Our main motivation and goal is to proceed insofar as possible within conventional string world-sheet theory. As we shall see, D-branes with magnetic flux ("magnetized D-branes") and the forces between them can be used to this end. We investigate here some necessary ingredients: open string one-loop vacuum amplitudes between magnetized D-branes, magnetized D-branes fixed at orbifold singularities, and potential energies among such D-branes in the compact space that result from tree-level closed string exchanges.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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