Drummond型Polchinski-Strominger有效弦论的全阶谱
Spectrum to all orders of Polchinski-Strominger Effective String Theories of the Drummond Type
摘要：
德拉蒙德提出了四个作用量，以$R^{-6}$为阶的波尔钦斯基-斯特罗明格有效弦论，其中$2πR$是（闭合）弦的长度>。在\cite{covariant}中，基于协方差参数，已经证明了其中只有两个是独立的。我们用这两种作用量分析了有效弦论的谱内容。我们表明，列入这些行动并不产生校正南武后藤理论\cite{Arv}的频谱。
英文摘要：
Drummond had proposed four actions for Polchinski-Strominger effective string theories at order $R^{-6}$, where $2πR$ is the length of the (closed) string >. In \cite{covariant} it had been shown, based on covariance arguments, that only two of them are independent. We analyse the spectral content of effective string theories with these two actions. We show that the inclusion of these actions does not yield corrections to the spectrum of Nambu-Goto theory \cite{Arv}.
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