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arXiv 0909.3745hep-th
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十一维超重力中新的N=2超对称膜流

New N=2 Supersymmetric Membrane Flow In Eleven-Dimensional Supergravity

Changhyun Ahn

摘要:

在四维N=8规范超引力中,我们构造了已知N=2超对称RG流解的11维升力。保持SU(2)x U(1)x U(1)_R对称性的压缩和拉伸7维内部度量包含Einstein-Kahler 2-fold,它是2004年发现的5维Sasaki-Einstein Y^{p,q}空间的基流形。AdS_4超引力场的非平凡r(横截畴壁)依赖性使得Einstein-麦克斯韦方程组不仅在临界点处是一致的,而且在连接两个临界点的超对称整个RG流上也是一致的.在适当的3-形式规范场下,我们找到了11维Einstein-麦克斯韦方程组的精确解,该方程组对应于SU(2)x U(1)x U(1)R不变RG流的上述提升.这个解的特殊极限给出了SU(3)× U(1)_R或SU(2)× SU(2)× U(1)_R的先前解。

英文摘要:

We construct the 11-dimensional lift of the known N=2 supersymmetric RG flow solution in 4-dimensional N=8 gauged supergravity. The squashed and stretched 7-dimensional internal metric preserving SU(2) x U(1) x U(1)_R symmetry contains an Einstein-Kahler 2-fold which is a base manifold of 5-dimensional Sasaki-Einstein Y^{p, q} space found in 2004. The nontrivial r(transverse to the domain wall)-dependence of the AdS_4 supergravity fields makes the Einstein-Maxwell equations consistent not only at the critical points but also along the supersymmetric whole RG flow connecting two critical points. With an appropriate 3-form gauge field, we find an exact solution to the 11-dimensional Einstein-Maxwell equations corresponding to the above lift of the SU(2) x U(1) x U(1)_R-invariant RG flow. The particular limits of this solution give rise to the previous solutions with SU(3) x U(1)_R or SU(2) x SU(2) x U(1)_R.

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