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arXiv 1111.4912hep-th
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修正立方开超弦场论的规范固定

Gauge Fixing of Modified Cubic Open Superstring Field Theory

Maiko Kohriki, Taichiro Kugo, Hiroshi Kunitomo

摘要:

在Batalin-Vilkovisky(BV)框架下,详细讨论了修正的三次开超弦场论中Ramond和Neveu-Schwarz两个扇区的规范固定问题.我们证明了第一次,相同的形式的作用作为经典的规范不变的弦场放松鬼数约束给出了满足BV主方程的主作用。这是通过基于对逆图像改变算子的核结构的分析来识别独立分量场来实现的。讨论了分量场的明确规范固定条件。在一类$b_0=0$规范中,我们明确地得到了在Virasoro算子$L_0$的零点处有极点的NS传播子.

英文摘要:

The gauge-fixing problem of modified cubic open superstring field theory is discussed in detail both for the Ramond and Neveu-Schwarz sectors in the Batalin-Vilkovisky (BV) framework. We prove for the first time that the same form of action as the classical gauge-invariant one with the ghost-number constraint on the string field relaxed gives the master action satisfying the BV master equation. This is achieved by identifying independent component fields based on the analysis of the kernel structure of the inverse picture changing operator. The explicit gauge-fixing conditions for the component fields are discussed. In a kind of $b_0=0$ gauge, we explicitly obtain the NS propagator which has poles at the zeros of the Virasoro operator $L_0$.

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