期刊
ENTROPY
卷 22, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/e22111265
关键词
non-equilibrium; stochastic processes; time-dependent PDF; information length; information geometry; entropy; fluctuations
资金
- Leverhulme Trust Research Fellowship [RF-2018-142-9]
When studying the behaviour of complex dynamical systems, a statistical formulation can provide useful insights. In particular, information geometry is a promising tool for this purpose. In this paper, we investigate the information length for n-dimensional linear autonomous stochastic processes, providing a basic theoretical framework that can be applied to a large set of problems in engineering and physics. A specific application is made to a harmonically bound particle system with the natural oscillation frequency omega, subject to a damping gamma and a Gaussian white-noise. We explore how the information length depends on omega and gamma, elucidating the role of critical damping gamma=2 omega in information geometry. Furthermore, in the long time limit, we show that the information length reflects the linear geometry associated with the Gaussian statistics in a linear stochastic process.
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