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arXiv 1704.03059hep-th
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正则玻色弦的散射振幅

Scattering amplitudes of regularized bosonic strings

J. Ambjorn, Y. Makeenko

摘要:

在平均场近似下,我们计算了正则化玻色Nambu-Goto弦的散射振幅,忽略了Lagrange乘子的涨落和关于其平均值的独立度量.我们使用前面介绍的小人国标度限制恢复的Regge行为的振幅与通常的线性Regge轨迹在时空维度d>2。我们证明了稳定性的最小值的有效作用下的波动d<26。

英文摘要:

We compute scattering amplitudes of the regularized bosonic Nambu-Goto string in the mean-field approximation, disregarding fluctuations of the Lagrange multiplier and an independent metric about their mean values. We use the previously introduced Lilliputian scaling limit to recover the Regge behavior of the amplitudes with the usual linear Regge trajectory in space-time dimensions d>2. We demonstrate a stability of this minimum of the effective action under fluctuations for d<26.

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