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arXiv 1306.3982hep-th
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通量紧化中的黑膜

Black branes in flux compactifications

Gonzalo Torroba, Huajia Wang

摘要:

我们在IIA型通量紧化中构造了带电黑膜,它是有限密度下(2+1)维场论的对偶。内部空间是一个具有通量的一般卡-丘流形,其内部维数远小于AdS半径。规范场由卡-丘调和形式的3-形式RR势导出,而卡鲁扎-克莱因模则解耦。黑膜是由四维有效场论描述的,它只包括几个光场,并且在参数化的大尺度范围内是有效的。这一有效理论决定了体系的低能动力学、稳定性和热力学性质。来自通量紧致化的工具也用于构建没有相关标量算子的全息CFTs,这可以导致凝聚态系统的对称相在非常低的温度下稳定。一般的形式主义示出了简单的例子,如环面紧化和流形与一个单一的尺寸模。我们提出了用通量紧致化描述的物质全息相的分类,包括广义Reissner-Nordstrom膜、非超对称$AdS_2 \times R^2$和超标度违反解。

英文摘要:

We construct charged black branes in type IIA flux compactifications that are dual to (2+1)-dimensional field theories at finite density. The internal space is a general Calabi-Yau manifold with fluxes, with internal dimensions much smaller than the AdS radius. Gauge fields descend from the 3-form RR potential evaluated on harmonic forms of the Calabi-Yau, and Kaluza-Klein modes decouple. Black branes are described by a four-dimensional effective field theory that includes only a few light fields and is valid over a parametrically large range of scales. This effective theory determines the low energy dynamics, stability and thermodynamic properties. Tools from flux compactifications are also used to construct holographic CFTs with no relevant scalar operators, that can lead to symmetric phases of condensed matter systems stable to very low temperatures. The general formalism is illustrated with simple examples such as toroidal compactifications and manifolds with a single size modulus. We initiate the classification of holographic phases of matter described by flux compactifications, which include generalized Reissner-Nordstrom branes, nonsupersymmetric $AdS_2 \times R^2$ and hyperscaling violating solutions.

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