D-brane solitons in supersymmetric sigma models
D-brane solitons in supersymmetric sigma models
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超对称 sigma 模型中的 D 膜孤子
DOI：
10.1103/physrevd.63.085002
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发表时间：
2000
影响因子：
5
通讯作者：
P. Townsend
中科院分区：
文献类型：
--
作者：
J. Gauntlett;R. Portugués;D. Tong;P. Townsend
质量$D=4,$ N=2$超对称sigma模型通常承认域壁$（Q$-kink）解和弦$（Q$-lump）解，两者都保持1/2超对称。我们展示了一种新的静态1/4超对称“扭结块”解决方案，其中字符串在墙上结束，并证明它有效地实现了$D=4$超级DBI动作。还证明了它具有一个随时间变化的Q-结块推广，可归结为在无限BI磁场的极限处的Q块。所有这些1/4超对称sigma模型孤子在M理论中被证明是在M单极子背景下校准的，或“$Q$校准的”m5膜。
Massive $D=4,$ $N=2$ supersymmetric sigma models typically admit domain wall $(Q$-kink) solutions and string $(Q$-lump) solutions, both preserving 1/2 supersymmetry. We exhibit a new static 1/4 supersymmetric ``kink-lump'' solution in which a string ends on a wall, and show that it has an effective realization as a bion of the $D=4$ super DBI action. It is also shown to have a time-dependent Q-kink-lump generalization which reduces to the Q lump in a limit corresponding to infinite BI magnetic field. All these 1/4 supersymmetric sigma-model solitons are shown to be realized in M theory as calibrated, or ``$Q$ calibrated,'' M5-branes in an M-monopole background.