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arXiv 0907.3862hep-th
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陪集超空间上扭子与超弦西格玛模型的联系

A Connection between Twistors and Superstring Sigma Models on Coset Superspaces

Martin Wolf

摘要:

我们考虑基于陪集超空间G/H的超弦西格玛模型,其中H作为G的4阶自同构的不动点集出现。通过扭量理论,我们表明,相应的一阶系统,包括Maurer-Cartan方程和运动方程,产生于一些广义自对偶杨-米尔斯方程在八个维度的降维。这样的关系可能有助于揭示超弦方程解的显式构造,包括它们隐藏的对称结构,从而揭示它们的规范理论性质。

英文摘要:

We consider superstring sigma models that are based on coset superspaces G/H in which H arises as the fixed point set of an order-4 automorphism of G. We show by means of twistor theory that the corresponding first-order system, consisting of the Maurer-Cartan equations and the equations of motion, arises from a dimensional reduction of some generalised self-dual Yang-Mills equations in eight dimensions. Such a relationship might help shed light on the explicit construction of solutions to the superstring equations including their hidden symmetry structures and thus on the properties of their gauge theory duals.

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