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arXiv 0704.3544hep-th
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N=1 Polchinski-Strassler背景中的全息味

Holographic flavour in the N=1 Polchinski-Strassler background

Christoph Sieg

摘要:

为了赋予N=1* SYM理论夸克,我们将D 7-膜探针嵌入到它的引力对偶中,称为Polchinski-Strassler背景。背景中的非零3型通量G_3与三个伴随手征超场的质量项对偶,使N=4 SYM理论变形为N=1* SYM理论。我们保持它的三个质量参数独立。这推广了我们在hep-th/0610276中对N=2* SYM理论的分析。我们在质量微扰中采用二级微扰,即G_3及其在背景上的反反应被微扰到这一级。我们发现的嵌入,在一般情况下也依赖于角度变量的解析解。我们讨论了解的性质,并给出我们的近似的误差估计。通过应用全息重整化方法,我们证明了在所有情况下嵌入至少与超对称性一致。

英文摘要:

To endow the N=1* SYM theory with quarks, we embed D7-brane probes into its gravity dual, known as the Polchinski-Strassler background. The non-vanishing 3-form flux G_3 in the background is dual to mass terms for the three adjoint chiral superfields, deforming the N=4 SYM theory to the N=1* SYM theory. We keep its three mass parameters independent. This generalizes our analysis in hep-th/0610276 for the N=2* SYM theory. We work at second order in the mass perturbation, i.e. G_3 and its backreaction on the background are considered perturbatively up to this order. We find analytic solutions for the embeddings which in general depend also on angular variables. We discuss the properties of the solutions and give error estimates on our approximation. By applying the method of holographic renormalization, we show that in all cases the embeddings are at least consistent with supersymmetry.

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