| 几种典型背景中Green-Schwarz超弦的κ-对称性 |
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| 引用本文： | 王展云,王晓辉,石康杰,岳瑞宏.几种典型背景中Green-Schwarz超弦的κ-对称性[J].物理学报,2007,56(2):755-763. |
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| 作者姓名： | 王展云 王晓辉 石康杰 岳瑞宏 |
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| 作者单位： | (1)西安邮电学院电子与信息工程系,西安 710121；西北大学现代物理研究所,西安 710069; (2)西北大学现代物理研究所,西安 710069 |
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| 基金项目： | 国家自然科学基金(批准号：10575080)资助的课题. |
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| 摘 要： | Metsaev和Tseytlin(MT)给出的AdS5S5背景中Green-Schwarz(GS) IIB超弦的Polyakov作用量可以写成等价的Nambu-Goto形式.对于这种形式，给出了新的与靶空间的流有关的投影算子，并用其构造了使作用量不变的局域κ-变换.κ-对称性的这种新方案是由Schwarz对于GS模型提出的.由于MT模型与GS模型有所不同，文中所构造的局域κ-变换有一些新的特点，且适用于其他类似于MT模型的系统.文中分别以AdS5S1背景中IIB弦及Polyakov新提出的模型为例，构造了κ-对称性的靶空间形式.
关键词：
Green-Schwarz超弦
κ-对称性')" href="#">κ-对称性
AdS5S5')" href="#">AdS5S5
AdS5S1')" href="#">AdS5S1
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| 关 键 词： | Green-Schwarz超弦 κ-对称性 AdS5S5 AdS5S1 |
| 文章编号： | 1000-3290/2007/56(02)/0755-09 |
| 收稿时间： | 8/6/2006 12:00:00 AM |
| 修稿时间： | 9/4/2006 12:00:00 AM |
The K-symmetry of Green-Schwarz superstring in some typical background |
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| Wang Zhan-Yun,Wang Xiao-Hui,Shi Kang-Jie and Yue Rui-Hong.The K-symmetry of Green-Schwarz superstring in some typical background[J].Acta Physica Sinica,2007,56(2):755-763. |
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| Authors: | Wang Zhan-Yun Wang Xiao-Hui Shi Kang-Jie and Yue Rui-Hong |
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| Abstract: | The action of type IIB superstring in AdS5S5 background given by Metsaev and Tseytlin(MT) can be reformulated in the Nambu-Goto form. For this form we give the new projection operator involving vielbeins in the target space to con-struct local κ-transformations which leave the action invariant. This new formulation of κ-symmetry(called target space form)is first suggested by Schwarz for the Green-Schwarz(GS) model. Due to the difference between GS model and MT model, our con-struction has some new aspects, which is applicable to all models similar to the MT model. An example is given for the AdS5S1 IIB superstring. We also study the κ-symmetry in target space form for the Polyakov model. |
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| Keywords: | Green-Schwarz superstring κ-symmetry AdS5S5 AdS5S1 |
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