Critical dynamics of a vortex-loop model for the superconducting transition

被引：13

作者：

Aji, V ^{[1
]}

Goldenfeld, N ^{[1
]}

机构：

[1] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.87.197003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We calculate analytically the dynamic critical exponent z(MC), measured in Monte Carlo simulations for a vortex loop model of the superconducting transition, and account for the simulation results. In the weak screening limit, where magnetic fluctuations are neglected, the dynamic exponent is found to be z(MC) = 3/2. In the perfect screening limit z(MC) = 5/2. We relate z(MC) to the actual value of z observable in experiments and find that z similar to 2, consistent with some experimental results.

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页数：4

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