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arXiv 0911.4976hep-th
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全息算符混合-霍尔实验

Holographic operator mixing - the Hall experiment

Javier Tarrio

摘要:

在由Nc个Dp-膜和Nf << N_c个Dq-膜的交集组成的系统中,我们用线性响应理论计算了欧姆电导率和霍尔电导率.协议之间发现以前的结果在宏观方法比较感应电流与外部电场。提出了如何处理混业经营的问题。延迟格林函数由一个矩阵给出,该矩阵可以从边界作用量计算,类似于非耦合算子的格林函数。

英文摘要:

We calculate the Ohmic and Hall conductivities from linear response theory in a system consisting of the intersection of Nc Dp-branes and Nf << N_c Dq-branes. Agreement is found between previous results found in a macroscopic approach comparing induced currents with external electric fields. The issue of how to deal with mixed operators is raised. The retarded Green's function is given by a matrix that can be computed from the boundary action similarly to the Green's function for uncoupled operators.

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