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arXiv 1503.06749cond-mat.stat-mechnlin.CD
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Gibbs正则振子的遍历时间可逆混沌

Ergodic Time-Reversible Chaos for Gibbs' Canonical Oscillator

William Graham Hoover, Julien Clinton Sprott, Puneet Kumar Patra

摘要:

Nosé 1984年的开创性工作启发了各种时间可逆确定性恒温器。虽然有几个研究小组已经发展出成功的双恒温模型,但单恒温模型未能产生一维谐振子的吉布斯正则分布。Sergi和Ferrario在2001年的双恒温模型,声称是遍历的,有一个单恒温版本。虽然这两个模型都不是遍历的,但这项工作提出了一条通往单恒温遍历的成功途径。我们说明遍历性和缺乏这些模型使用相空间截面和李雅普诺夫不稳定性作为诊断工具。

英文摘要:

Nosé's pioneering 1984 work inspired a variety of time-reversible deterministic thermostats. Though several groups have developed successful doubly-thermostated models, single-thermostat models have failed to generate Gibbs' canonical distribution for the one-dimensional harmonic oscillator. Sergi and Ferrario's 2001 doubly-thermostated model, claimed to be ergodic, has a singly-thermostated version. Though neither of these models is ergodic this work has suggested a successful route toward singly-thermostated ergodicity. We illustrate both ergodicity and its lack for these models using phase-space cross sections and Lyapunov instability as diagnostic tools.

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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