A breathing mode for warped compactifications
A breathing mode for warped compactifications
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扭曲压缩的呼吸模式
DOI：
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发表时间：
2010
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影响因子：
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通讯作者：
Bret Underwood
中科院分区：
文献类型：
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作者：
Bret Underwood
在一般的翘曲紧化中，翘曲因子和介子的非平凡背景破坏了D维同态不变性，因此介子的涨落可以完全被度量所度量。更具体地说，翘曲体积模量和微扰子不是独立的，而是在低维有效理论中联合收割机组合成单个规范不变的自由度，即翘曲呼吸模式。这发生在所有的翘曲强度，甚至弱翘曲极限。这种扭曲的呼吸模式表现为自然的零模式变形的背景来源的p膜，并影响识别的独立自由度的通量紧致化。
In general warped compactifications, non-trivial backgrounds for the warp factor and the dilaton break D-dimensional diffeomorphism invariance, so that dilaton fluctuations can be gauged away completely and eaten by the metric. More specifically, the warped volume modulus and the dilaton are not independent, but combine into a single gauge-invariant degree of freedom in the lower dimensional effective theory, the warped breathing mode. This occurs for all strengths of the warping, even the weakly warped limit. This warped breathing mode appears as a natural zero mode deformation of backgrounds sourced by p-branes and affects the identification of the independent degrees of freedom of flux compactifications.