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arXiv 0912.3829hep-th
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AdS x S中的类空极小曲面

Space-like minimal surfaces in AdS x S

Harald Dorn, Nadav Drukker, George Jorjadze, Chrysostomos Kalousios

摘要:

我们在AdS_3 x S^3中给出了一个四参数的经典弦解族,它终止于AdS_3边界上的一个类光四边形上,并携带沿球面上两个圈的角动量。弦曲面是类空的,它们在AdS_3和S^3上的投影具有恒定的平均曲率。该构造基于相关西格玛模型的Pohlmeyer约化。嵌入AdS_5 x S^5后,我们计算正则化面积并分析保守电荷。评论可能的关系,散射振幅。我们还概述了解决方案的时间版本。

英文摘要:

We present a four parameter family of classical string solutions in AdS_3 x S^3, which end along a light-like tetragon at the boundary of AdS_3 and carry angular momentum along two cycles on the sphere. The string surfaces are space-like and their projections on AdS_3 and on S^3 have constant mean curvature. The construction is based on the Pohlmeyer reduction of the related sigma model. After embedding in AdS_5 x S^5, we calculate the regularized area and analyze conserved charges. Comments on possible relations to scattering amplitudes are presented. We also sketch time-like versions of our solutions.

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