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arXiv 1103.4656hep-th
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ABJM理论的自由能

Free Energy of ABJM Theory

Mikael Smedbäck

摘要:

ABJM理论的自由能先前已经在强耦合和弱耦合极限下计算。在这篇文章中,我们报告了从场论方面计算自由能的第一个非零量子修正的结果。该校正可以用标量场的热质量来表示。这个质量在单圈阶时为零,但在双圈阶时有一个非零结果。因此,自由能的主要修正在t Hooft耦合常数λ中是非解析的。原因是红外发散需要重新绘制环图和重新整理微扰理论,其中主要的修正已经得到了λ中所有阶的贡献。这些结果表明自由能在弱耦合和强耦合之间平滑地插值。

英文摘要:

The free energy of ABJM theory has previously been computed in the strong and weak coupling limits. In this note, we report on results for the computation of the first non-vanishing quantum correction to the free energy, from the field theory side. The correction can be expressed in terms of a thermal mass for the scalar fields. This mass vanishes to 1-loop order, but there is a non-vanishing result to 2-loop order. Hence, the leading correction to the free energy is non-analytic in the 't Hooft coupling constant lambda. The reason is that the infrared divergences necessitate a resummation of ring diagrams and a related reorganization of perturbation theory, in which already the leading correction receives contributions from all orders in lambda. These results suggest that the free energy interpolates smoothly between weak and strong coupling.

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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