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arXiv 0711.2828hep-th
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用AdS/CFT计算散射振幅时Alday-Maldacena解的评述

Comment on the Alday-Maldacena solution in calculating scattering amplitude via AdS/CFT

Gang Yang

摘要:

继Alday和Maldacena提出的利用AdS/CFT方法求解N=4 SYM中强耦合散射振幅的方法之后,我们指出,通过施加所有的维拉索罗约束约束,可以得到唯一的解.在四胶子散射的情况下,该解与Alday-Maldacena解完全相同,后者与Bern,Dixon和Smirnov的结论一致。这也解决了模空间问题的四点解决方案在最近的文件Mironov,Morozov和Tomaras。

英文摘要:

Following the recent proposal of Alday and Maldacena to obtain the strong coupling scattering amplitude in N=4 SYM via AdS/CFT, we point out that a unique solution can be obtained by imposing all the Virasoro constraints. In the case of four-gluon scattering, this solution is identical to the Alday-Maldacena solution, which is in accordance with the ansatz of Bern, Dixon and Smirnov. This also solves the moduli space problem of the four-point solution in a recent paper of Mironov, Morozov and Tomaras.

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