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arXiv 1506.05005hep-th
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非几何背景下手征多重态预势的规范固定条件

Gauge-fixing Condition on Prepotential of Chiral Multiplet for Nongeometric Backgrounds

Tetsuji Kimura

摘要:

在二维${\cal N}=(2,2)$理论中,研究了复超场的超规范变换产生手征超场的问题。这个复超场被称为手征超场的前势。由于预势中存在冗余分量场,我们通过规范固定条件去掉了部分冗余分量场。这种情形与矢量超场的情形相似。为了得到一个合适的配置的奇异的五膜,它会产生一个非几何背景的GLSM,我们施加了一个相对宽松的规范固定条件。结果表明,规范固定的前势不同于其标量场代表广义Kähler几何坐标的半手征超场。

英文摘要:

We study a supergauge transformation of a complex superfield which generates a chiral superfield in two-dimensional ${\cal N}=(2,2)$ theory. This complex superfield is referred to as the prepotential of the chiral superfield. Since there exist redundant component fields in the prepotential, we remove some of them by a gauge-fixing condition. This situation is parallel to that of a vector superfield. In order to obtain a suitable configuration of the GLSM for the exotic five-brane which gives rise to a nongeometric background, we impose a relatively relaxed gauge-fixing condition. It turns out that the gauge-fixed prepotential is different from a semichiral superfield whose scalar field represents a coordinate of generalized Kähler geometry.

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