Superstring field theory in the democratic picture
Superstring field theory in the democratic picture
复制标题
民主图景中的超弦场论
DOI：
10.4310/atmp.2011.v15.n3.a3
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发表时间：
2009
影响因子：
1.5
通讯作者：
M. Kroyter
中科院分区：
文献类型：
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作者：
M. Kroyter
提出了一种新的开放超弦场理论，它的弦场携带任意图像数，并且存在于大希尔伯特空间中。通过将图像变化视为一种规范变换，解决了与图像数目相关的冗余问题。对于这种形式主义来说，中间点插入是必要的。我们发现这个中点插入必须包含所有的多图像变换算子。并证明了该插入算子和所有的多图像变换算子都是零权共形原色。这一新理论解决了其他RNS弦场理论所共有的Ramond扇区问题，同时自然地统一了NS和Ramond弦场。当规范部分固定时，它在NS扇区简化为修正的三次超弦场论。因此，它具有该理论的所有优良性质，例如，它具有解析真空解和边际变形解。使用BV形式处理冗余规范对称是简单的，结果是具有单个弦场的三次作用，其量子数是不受约束的。推广到任意的膜系统是简单的，包括标准的ChanPaton因子和与膜系统一致的最一般的弦场。
We present a new open superstring field theory, whose string fields carry an arbitrary picture number and reside in the large Hilbert space. The redundancy related to picture number is resolved by treating picture changing as a gauge transformation. A mid-point insertion is imperative for this formalism. We find that this mid-point insertion must include all multi-picture changing operators. It is also proven that this insertion as well as all the multi-picture changing operators are zero weight conformal primaries. This new theory solves the problems with the Ramond sector shared by other RNS string field theories, while naturally unifying the NS and Ramond string fields. When partially gauge fixed, it reduces in the NS sector to the modified cubic superstring field theory. Hence, it shares all the good properties of this theory, e.g., it has analytical vacuum and marginal deformation solutions. Treating the redundant gauge symmetry using the BV formalism is straightforward and results in a cubic action with a single string field, whose quantum numbers are unconstrained. The generalization to an arbitrary brane system is simple and includes the standard ChanPaton factors and the most general string field consistent with the brane system.