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arXiv 2602.08895nlin.CDcond-mat.stat-mech
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混沌:相空间中的临界现象:费因伯格常数和临界指数

Chaos, the Critical Phenomenon in Phase Space: Feigenbaum Constants and Critical Exponents

College of Engineering and Applied Sciences, Nanjing University(南京大学工程与应用科学学院);School of physics, Southeast University(东南大学物理学院)

Yonghui Xia, Hongtao Feng

AI总结:

研究揭示混沌在相空间中的临界性质,通过费因伯格常数和临界指数区分混沌类别,并解释守恒系统中熵增与热力学第二定律的矛盾。

摘要:

在耗散系统和守恒系统中,混沌现象通过重整化群方法进行研究。发现混沌被视为相空间中平衡统计的临界现象。周期翻倍分岔系统中的两个费因伯格常数对应两个独立的临界指数,这些指数是普遍的,可用于区分混沌的不同类别。对于守恒系统,由于混沌的临界性质,具有不同参数的孤立系统在相空间中相互关联,因此孤立系统在相空间中不再孤立。守恒系统的信息随时间不可逆地丢失,导致孤立系统的熵增,从而解决了热力学第二定律与孤立系统可逆性之间的矛盾。

英文摘要:

Chaos in both dissipative systems and conservative systems is investigated on the approach of renormalization group. It is found that the chaos is regarded as the critical phenomenon of equilibrium statistics in phase space. The two Feigenbaum constants in the period-doubling bifurcation systems correspond to two independent critical exponents, which are universal and can be adopted to distinguish the classes of chaos. For the conservative systems, due to the critical nature of the chaos, the isolated systems with different parameters are correlated in the phase space, and therefore the isolated system is no longer isolated in the phase space. The information of conservative systems is irreversibly lost over time, which leads to the increase entropy in an isolated system, and the contradiction between the second law of thermodynamics and the reversibility of isolated systems can be resolved.

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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