arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 0903.4808cond-mat.stat-mech
收藏

图上连续对称模型的相序和普适性

Phase ordering and universality for continuous symmetry models on graphs

R. Burioni, F. Corberi, A. Vezzani

摘要:

我们研究了O(N)连续对称模型在温度淬火后的相序动力学。通过大量的模拟,我们表明,全球模式的标度行为是类似的一个发现通常的晶格。积分响应函数的指数a和描述增长长度的指数z仅通过谱维数和分形维数与网络的大尺度拓扑结构相关,其表达式与无限N极限的解析解相同。这表明这些指数的大N值对于每个N都是精确的。

英文摘要:

We study the phase-ordering kinetics following a temperature quench of O(N) continuous symmetry models with and 4 on graphs. By means of extensive simulations, we show that the global pattern of scaling behaviours is analogous to the one found on usual lattices. The exponent a for the integrated response function and the exponent z, describing the growing length, are related to the large scale topology of the networks through the spectral dimension and the fractal dimension alone, by means of the same expressions as are provided by the analytic solution of the inifnite N limit. This suggests that the large N value of these exponents could be exact for every N.

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。

↑