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arXiv 1003.0023hep-th
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Skyrmions，instantons和全息术

Skyrmions, instantons and holography

Paul Sutcliffe

备注：
References added. Matches published version
发表信息：
JHEP 1008:019,2010
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摘要：

不久前，Atiyah和Manton观察到，计算杨-米尔斯瞬子的完整性可以很好地近似Skyrme模型的静态Skyrmion解。本文提供了一个扩展和解释这一结果，通过证明瞬子holonomies产生的BPS Skyrme模型，其中Skyrme场耦合到一个塔的矢量介子的精确解。忽略任何（或实际上所有）矢量介子会破坏尺度不变性，并消除Skyrmions的BPS性质。然而，它表明，截断的BPS Skyrme理论，其中只包括第一矢量介子，已经移动的Skyrme模型显着接近BPS系统。需要一个接近BPS系统的理论来再现原子核结合能的实验数据。在截断BPS理论中对Skyrmion进行了零模量子化，并将结果与核子的物理性质进行了比较。这种方法在五维闵可夫斯基时空中类似于酒井和杉本最近全息构建的Skyrme模型，该模型基于弯曲五维时空中杨-米尔斯-陈-西蒙斯理论的弦论推导。

英文摘要：

Some time ago, Atiyah and Manton observed that computing the holonomy of Yang-Mills instantons yields good approximations to static Skyrmion solutions of the Skyrme model. This paper provides an extension and explanation of this result, by proving that instanton holonomies produce exact solutions of a BPS Skyrme model, in which the Skyrme field is coupled to a tower of vector mesons. Neglecting any (or indeed all) of the vector mesons breaks the scale invariance and removes the BPS property of the Skyrmions. However, it is shown that a truncation of the BPS Skyrme theory, in which only the first vector meson is included, already moves the Skyrme model significantly closer to the BPS system. A theory that is close to a BPS system is required to reproduce the experimental data on binding energies of nuclei. A zero-mode quantization of the Skyrmion is performed in the truncated BPS theory and the results are compared to the physical properties of the nucleon. The approach is an analogue in five-dimensional Minkowski spacetime of a recent holographic construction of a Skyrme model by Sakai and Sugimoto, based on a string theory derivation of a Yang-Mills-Chern-Simons theory in a curved five-dimensional spacetime.

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