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arXiv 0905.1285hep-th
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非平凡空间上Landau-Ginzburg模型的椭圆亏格

Elliptic genera of Landau-Ginzburg models over nontrivial spaces

M. Ando, E. Sharpe

摘要:

本文讨论了非平凡空间上(2,2)和(0,2)超对称Landau-Ginzburg模型的椭圆亏格,即非线性西格玛模型的非平凡非紧流形与超势,推广旧的计算Landau-Ginzburg模型(orbifolds)的向量空间。对于与非线性西格玛模型属于同一普适类的Landau-Ginzburg模型,我们通过Thom类计算明确地检验了Landau-Ginzburg模型的椭圆属与非线性西格玛模型的椭圆属相匹配,这种计算的形式类似于最近对非平凡空间上Landau-Ginzburg模型的其他性质的研究中出现的计算形式.

英文摘要:

In this paper, we discuss elliptic genera of (2,2) and (0,2) supersymmetric Landau-Ginzburg models over nontrivial spaces, i.e., nonlinear sigma models on nontrivial noncompact manifolds with superpotential, generalizing old computations in Landau-Ginzburg models over (orbifolds of) vector spaces. For Landau-Ginzburg models in the same universality class as nonlinear sigma models, we explicitly check that the elliptic genera of the Landau-Ginzburg models match that of the nonlinear sigma models, via a Thom class computation of a form analogous to that appearing in recent studies of other properties of Landau-Ginzburg models on nontrivial spaces.

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