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arXiv 0712.4167hep-th
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弦论中的非拓扑非交换性

Non-topological non-commutativity in string theory

Sebastian Guttenberg, Manfred Herbst, Maximilian Kreuzer, Radoslav Rashkov

摘要:

坐标的量子化导致形变量子化的非对易产物,但也是弦论的根源,时空坐标成为二维共形量子场论的动力学场。显然,开弦图提供了灵感孔采维奇的解决方案的长期问题的量化泊松几何凭借他的形式定理。然而,在D膜物理学的背景下,非对易性并不局限于拓扑部分。我们发现,非交换有效的行动仍然是有意义的结合性时,失去了,并建立一个广义Connes-Flato-Sternheimer条件,通过二阶导数展开。在一般弯曲的背景下的措施自然是由Born-Infeld行动,并减少到辛措施的拓扑极限,但仍然是非奇异的,即使退化泊松结构。本文还讨论了RR-场的类似超空间形变。

英文摘要:

Quantization of coordinates leads to the non-commutative product of deformation quantization, but is also at the roots of string theory, for which space-time coordinates become the dynamical fields of a two-dimensional conformal quantum field theory. Appositely, open string diagrams provided the inspiration for Kontsevich's solution of the long-standing problem of quantization of Poisson geometry by virtue of his formality theorem. In the context of D-brane physics non-commutativity is not limited, however, to the topolocial sector. We show that non-commutative effective actions still make sense when associativity is lost and establish a generalized Connes-Flato-Sternheimer condition through second order in a derivative expansion. The measure in general curved backgrounds is naturally provided by the Born--Infeld action and reduces to the symplectic measure in the topological limit, but remains non-singular even for degenerate Poisson structures. Analogous superspace deformations by RR--fields are also discussed.

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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