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arXiv 0706.2129hep-th
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膜的双扭量描述

Two-twistor Description of Membrane

Sergey Fedoruk, Jerzy Lukierski

摘要:

我们用两个三维世界体积场来描述D=4的twistorial膜。我们从两个相空间弦公式的D维p膜推广开始:一个是$p+1$矢量四动量,第二个是$(p+1)$阶张量。进一步我们考虑了D=4时的张力膜情况。利用Cartan-Penrose公式的膜推广,我们用旋量场表示四动量,得到了中间旋量时空形式。进一步通过用两个扭量场来表示世界体积Dreibein和膜时空坐标场,得到了纯扭量公式。看起来这个动作是由双扭量空间上的几何三形式产生的。最后,我们评论了高维(D>4)twistorial p膜模型及其超扩展。

英文摘要:

We describe D=4 twistorial membrane in terms of two twistorial three-dimensional world volume fields. We start with the D-dimensional p-brane generalizations of two phase space string formulations: the one with $p+1$ vectorial fourmomenta, and the second with tensorial momenta of $(p+1)$-th rank. Further we consider tensionful membrane case in D=4. By using the membrane generalization of Cartan-Penrose formula we express the fourmomenta by spinorial fields and obtain the intermediate spinor-space-time formulation. Further by expressing the worldvolume dreibein and the membrane space-time coordinate fields in terms of two twistor fields one obtains the purely twistorial formulation. It appears that the action is generated by a geometric three-form on two-twistor space. Finally we comment on higher-dimensional (D>4) twistorial p-brane models and their superextensions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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