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arXiv 0903.4241hep-thmath.OA
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一个非对易的西格玛模型

A noncommutative sigma-model

Varghese Mathai, Jonathan Rosenberg

摘要:

我们开始研究一个西格玛模型,其中时空流形和二维弦世界片都是非对易的。最精确的结果适用于时空流形和二维弦世界片都被非对易环面所取代的情况。在这种情况下,我们能够确定这种非对易环面之间的映射何时存在,导出欧拉-拉格朗日方程,对拉格朗日量的许多临界点进行分类,并研究相关的配分函数。

英文摘要:

We begin to study a sigma-model in which both the space-time manifold and the two-dimensional string world-sheet are made noncommutative. The most precise results apply to the case where both the space-time manifold and the two-dimensional string world-sheet are replaced by noncommutative tori. In this situation, we are able to determine when maps between such noncommutative tori exist, to derive the Euler-Lagrange equations, to classify many of the critical points of the Lagrangian, and to study the associated partition function.

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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