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arXiv 1107.2660hep-th
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AdS_3 × S^3上超群的无质量弦谱

The massless string spectrum on AdS_3 x S^3 from the supergroup

Matthias R. Gaberdiel, Sebastian Gerigk

摘要:

在混合形式下研究了AdS_3 × S^3上的弦论.我们给出了PSL(2)的详细描述|2)在纯NS-NS流背景下的超群WZW模型,确定了相应于无质量弦态的BRST-上同调。由此产生的频谱与预期的超重力答案完全匹配,包括球体上具有小KK动量的扇区。

英文摘要:

String theory on AdS_3 x S^3 is studied in the hybrid formulation. We give a detailed description of the PSL(2|2) supergroup WZW model that underlies the background with pure NS-NS flux, and determine the BRST-cohomology corresponding to the massless string states. The resulting spectrum is shown to match exactly with the expected supergravity answer, including the sectors with small KK momentum on the sphere.

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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