Critical Behaviors and Finite-Size Scaling of Principal Fluctuation Modes in Complex Systems
文献类型：期刊论文
| 作者 | Li, XT; Chen, XS ; Chen, XS (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
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| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
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| 出版日期 | 2016 |
| 卷号 | 66期号:3页码:355-362 |
| 关键词 | Critical Phenomena Finite-size Scaling Principal Fluctuation Modes |
| 英文摘要 | Complex systems consisting of N agents can be investigated from the aspect of principal fluctuation modes of agents. From the correlations between agents, an N x N correlation matrix C can be obtained. The principal fluctuation modes are defined by the eigenvectors of C. Near the critical point of a complex system, we anticipate that the principal fluctuation modes have the critical behaviors similar to that of the susceptibity. With the Ising model on a two-dimensional square lattice as an example, the critical behaviors of principal fluctuation modes have been studied. The eigenvalues of the first 9 principal fluctuation modes have been invesitigated. Our Monte Carlo data demonstrate that these eigenvalues of the system with size L and the reduced temperature t follow a finite-size scaling form lambda(n) (L, t) =L-gamma/nu f(n) (tL(1/nu)), where gamma is critical exponent of susceptibility and nu is the critical exponent of the correlation length. Using eigenvalues lambda(1), lambda(2) and lambda(6), we get the finite-size scaling form of the second moment correlation length xi (L, t) = L (xi) over tilde (tL(1/nu)) It is shown that the second moment correlation length in the two-dimensional square lattice is anisotropic. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/21545]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Chen, XS (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Li, XT,Chen, XS,Chen, XS . Critical Behaviors and Finite-Size Scaling of Principal Fluctuation Modes in Complex Systems[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2016,66(3):355-362. |
| APA | Li, XT,Chen, XS,&Chen, XS .(2016).Critical Behaviors and Finite-Size Scaling of Principal Fluctuation Modes in Complex Systems.COMMUNICATIONS IN THEORETICAL PHYSICS,66(3),355-362. |
| MLA | Li, XT,et al."Critical Behaviors and Finite-Size Scaling of Principal Fluctuation Modes in Complex Systems".COMMUNICATIONS IN THEORETICAL PHYSICS 66.3(2016):355-362. |
入库方式： OAI收割
来源：理论物理研究所
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