论文标题
$α'$ string校正
T-duality building blocks for $α'$ string corrections
论文作者
论文摘要
已显示T偶性可以约束弦理论的较高衍生化校正。我们重新审查了使用扭转连接的语言对$α'$校正施加的T偶偶性约束的问题。我们找到了一种方便的方式来表达$ O（D，d）$不变式，从一般$ d $维圆环紧凑型的指标和B场的线性组合方面，然后我们用来重新审视以$α'$ $α$ $α$ nime of bototic和Bosonition-维的。我们还对II型字符串中$α'^3 $更正的四点功能发表评论。
T-duality has been shown to constrain the higher derivative corrections of string theory. We revisit the problem of understanding the T-duality constraints imposed on the $α'$ corrections using the language of a torsionful connection. We find a convenient way to express the $O(d,d)$ invariants in terms of linear combinations of the metric and B-field for general $d$-dimensional torus compactifications, which we then use to revisit the heterotic and bosonic ten-dimensional string action at order $α'$. We also comment on the four-point functions for corrections of order $α'^3$ in the type II string.
