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arXiv 1802.04202hep-th
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用反瞬子捆绑瞬子

Tying up instantons with anti-instantons

Nikita Nekrasov

摘要:

在量子化经典力学系统时,人们经常像在定域公式中那样对经典轨迹求和,但也考虑到“瞬子气体”的贡献:一组运动方程的近似解。本文试图通过寻找复杂的经典力学系统的运动方程的诚实解来减轻这种40多年的方法的一些挫折。这些想法起源于贝特/规范对应。这些例子包括代数可积系统,从抽象的希钦系统到研究得很好的非谐振子。我们还推测了它在黑洞辐射中的应用。我们阐明了Lefschetz顶针和$Ω$变形的$B$模型之间的关系。提出了拓扑重整化群的概念。

英文摘要:

In quantizing classical mechanical systems one often sums over the classical trajectories as in localization formulas, but also takes into account the contributions of the "instanton gas": a set of approximate solutions of the equations of motion. This paper attempts to alleviate some of the frustrations of this 40+ years old approach by finding the honest solutions of equations of motion of the complexified classical mechanical system. These ideas originate in the Bethe/gauge correspondence. The examples include algebraic integrable systems, from the abstract Hitchin systems to the well-studied anharmonic oscillator. We also speculate on the applications to the black hole radiation. We elucidate the relation between Lefschetz thimbles and the $Ω$-deformed $B$-model. We propose the notion of the topological renormalization group.

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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