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arXiv 0906.2587hep-th
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小张力宇宙弦

Cosmic Strings with Small Tension

Edi Halyo

摘要:

我们描述宇宙F-长期弦指数小的张力,这是D3膜包裹在变形$A_3$奇点。我们表明,膜瞬子的影响,可以计算后的几何过渡引起一个指数小体积的节点上的D3膜包装导致一串小张力。我们推广我们的描述的情况下,非阿贝尔宇宙弦,并认为这些字符串是稳定的,对反-反反双创造。

英文摘要:

We describe cosmic F--term strings with exponentially small tension which are D3 branes wrapped on deformed $A_3$ singularities. We show that brane instanton effects which can be calculated after a geometric transition give rise to an exponentially small volume for the node on which the D3 branes wrap leading to a string with small tension. We generalize our description to the case of non--Abelian cosmic strings and argue that these strings are stable against monopole--anti monopole pair creation.

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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