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arXiv 1706.00352hep-th
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超弦场论的隐规范约化与Batalin-Vilkovisky Master action

Hidden gauge reducibility of superstring field theory and Batalin-Vilkovisky master action

Hiroaki Matsunaga

摘要:

本文证明了基于小动力弦场$Ψ\in \mathcal{H}_{βγ}$的超弦场论中存在一个隐藏的规范约化,它的规范变分也是小的$δΨ\in \mathcal{H}_{βγ}$ .在固定规范理论或量子规范理论中,它需要额外的鬼-反鬼场,从而改变了巴塔林-维尔科维奇主作用量,这意味着通过场论的规范选择,在圈超弦振幅中出现了额外的传播自由度。我们提出,由此产生的主动作可以采取不同的和扩大的形式,并存在规范的转换得到它回到规范形式。在Batalin-Vilkovisky形式的基础上,我们得到了几个精确的结果,澄清了超弦场论的这种基本规范结构。

英文摘要:

In this paper, we show that there exists a hidden gauge reducibility in superstring field theory based on the small dynamical string field $Ψ\in \mathcal{H}_{βγ}$ whose gauge variation is also small $δΨ\in \mathcal{H}_{βγ}$. It requires additional ghost-antighost fields in the gauge fixed or quantum gauge theory, and thus changes the Batalin-Vilkovisky master action, which implies that additional propagating degrees of freedom appear in the loop superstring amplitudes via the gauge choice of the field theory. We present that the resultant master action can take a different and enlarged form, and that there exist canonical transformations getting it back to the canonical form. On the basis of the Batalin-Vilkovisky formalism, we obtain several exact results and clarify this underlying gauge structure of superstring field theory.

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