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arXiv 1503.07883hep-thmath-phmath.MP
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光谱zeta函数和ABJM费米气体的非微扰效应

Spectral zeta function and non-perturbative effects in ABJM Fermi-gas

Yasuyuki Hatsuda

摘要:

三球ABJM理论中的精确配分函数可以看作是非相互作用费米气体的正则配分函数。所有关于配分函数的信息都被编码在该哈密顿量的离散谱中。我们解释如何(量子力学)非微扰校正的费米气体系统出现从光谱的考虑。在我们的分析中的基本工具是梅林-巴恩斯型积分表示和频谱zeta函数。从与已知结果的一致性,我们推测,在ABJM费米气体的光谱zeta函数具有无限数量的“非微扰”极点,这是不可见的半经典展开的普朗克常量。我们观察到,这些极点确实出现后,总结微扰修正。因此,微扰的光谱zeta函数的重新计算导致非微扰校正的巨正则配分函数。我们还提出了另一个例子与拓扑弦论的谱问题。在此框架下,成功地再现了解析锥上的一个约束的非微扰自由能。

英文摘要:

The exact partition function in ABJM theory on three-sphere can be regarded as a canonical partition function of a non-interacting Fermi-gas with an unconventional Hamiltonian. All the information on the partition function is encoded in the discrete spectrum of this Hamiltonian. We explain how (quantum mechanical) non-perturbative corrections in the Fermi-gas system appear from a spectral consideration. Basic tools in our analysis are a Mellin-Barnes type integral representation and a spectral zeta function. From a consistency with known results, we conjecture that the spectral zeta function in the ABJM Fermi-gas has an infinite number of "non-perturbative" poles, which are invisible in the semi-classical expansion of the Planck constant. We observe that these poles indeed appear after summing up perturbative corrections. As a consequence, the perturbative resummation of the spectral zeta function causes non-perturbative corrections to the grand canonical partition function. We also present another example associated with a spectral problem in topological string theory. A conjectured non-perturbative free energy on the resolved conifold is successfully reproduced in this framework.

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