A reduction scheme for coupled Brownian harmonic oscillators
A reduction scheme for coupled Brownian harmonic oscillators
复制标题
耦合布朗谐振子的简化方案
DOI:
10.1088/1751-8121/acab41
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Colangeli M
中科院分区:
文献类型:
--
作者:
Colangeli M
We propose a reduction scheme for a system constituted by two coupled harmonically-bound Brownian oscillators. We reduce the description by constructing a lower dimensional model which inherits some of the basic features of the original dynamics and is written in terms of suitable transport coefficients. The proposed procedure is twofold: while the deterministic component of the dynamics is obtained by a direct application of the invariant manifold method, the diffusion terms are determined via the fluctuation-dissipation theorem. We highlight the behavior of the coefficients up to a critical value of the coupling parameter, which marks the endpoint of the interval in which a contracted description is available. The study of the weak coupling regime is addressed and the commutativity of alternative reduction paths is also discussed.
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DOI:
--
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期刊:
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