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arXiv 1407.4061hep-thmath-phmath.MP
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模糊$\mathbb C P^n$上标量场的一致序相位和phase diagram

Uniform order phase and phase diagram of scalar field theory on fuzzy $\mathbb C P^n$

Juraj Tekel

摘要:

研究了模糊$\mathbb C P^n$上标量场理论在大$N$极限下的相结构.将该理论看作一个厄米矩阵模型,在分布接近圆的假设下,计算了动力学项有效作用量的微扰展开式。我们发现,该模型也承认一个统一的顺序相,对应于不对称的一次切割分布,我们找到的相边界。我们计算一个非微扰近似的有效作用,使我们能够识别的障碍和非均匀有序相和它们之间的相变。我们找到了理论的三相点,并找到了与以前的数值研究的模糊球的情况下的协议。

英文摘要:

We study the phase structure of the scalar field theory on fuzzy $\mathbb C P^n$ in the large $N$ limit. Considering the theory as a hermitian matrix model we compute the perturbative expansion of the kinetic term effective action under the assumption of distributions being close to the semicircle. We show that this model admits also a uniform order phase, corresponding to the asymmetric one-cut distribution, and we find the phase boundary. We compute a non-perturbative approximation to the effective action which enables us to identify the disorder and the non-uniform order phases and the phase transition between them. We locate the triple point of the theory and find an agreement with previous numerical studies for the case of the fuzzy sphere.

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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