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arXiv 2005.10827cond-mat.stat-mechhep-th
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$O(N)$多临界通用行为的命运

The fate of $O(N)$ multi-critical universal behaviour

Nicolò Defenu, Alessandro Codello

摘要:

在$N\to\infty$极限下,$O(N)$对称模型的多临界不动点不再存在,但调节其湮灭的机制仍然呈现出几个神秘的方面。在这里,我们探讨了高阶多临界点在$(d,N)$平面上的演化,并揭示了它们在大$N$上的渐近行为的复杂镶嵌。这张照片证实了各种RG的方法,并构成了一个基本的一步,充分理解的关键行为在$O(N)$场论。

英文摘要:

The multi-critical fixed points of $O(N)$ symmetric models cease to exist in the $N\to\infty$ limit, but the mechanism regulating their annihilation still presents several enigmatic aspects. Here, we explore the evolution of high-order multi-critical points in the $(d,N)$ plane and uncover a complex mosaics for their asymptotic behaviour at large $N$. This picture is confirmed by various RG approaches and constitutes a fundamental step towards the full comprehension of critical behaviour in $O(N)$ field theories.

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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