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arXiv 0812.5074hep-th
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AdS_5xS^5纯旋量公式的简化与推广

Simplifying and Extending the AdS_5xS^5 Pure Spinor Formalism

Nathan Berkovits

摘要:

虽然AdS_5xS^5世界片作用量不是二次的,但纯旋量形式的某些特征在AdS_5xS^5背景中比在平坦背景中更简单。BRST算子的几何行为,左,右移动的纯旋量鬼可以被视为复杂的共轭,零模式的测量因子是平凡的,和b鬼不需要非最小字段。此外,通过G/G主手征模型G=PSU(2,2)的规范固定,可以构造具有相同世界面变量和BRST算子的AdS_5xS^5作用量的拓扑形式|4)。这个拓扑模型被认为描述了零半径极限,它是自由N=4超杨米尔斯的对偶,也可以被解释为超弦理论的“不间断相”。

英文摘要:

Although the AdS_5xS^5 worldsheet action is not quadratic, some features of the pure spinor formalism are simpler in an AdS_5xS^5 background than in a flat background. The BRST operator acts geometrically, the left and right-moving pure spinor ghosts can be treated as complex conjugates, the zero mode measure factor is trivial, and the b ghost does not require non-minimal fields. Furthermore, a topological version of the AdS_5xS^5 action with the same worldsheet variables and BRST operator can be constructed by gauge-fixing a G/G principal chiral model where G=PSU(2,2|4). This topological model is argued to describe the zero radius limit that is dual to free N=4 super-Yang-Mills and can also be interpreted as an "unbroken phase" of superstring theory.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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