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arXiv 2301.09592math-phmath.MP
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多维Kac模型熵和信息的衰减

Decay of Entropy and Information for multidimensional Kac models

Lukas Hauger

摘要:

本文用相对熵研究气体粒子系统达到平衡的途径。该系统是由Kac主方程在任意尺寸建模。首先,我们研究耦合到恒温器的Kac系统,其次连接到热库。Fisher信息的使用允许具有弱正则性假设的初等证明。因此,我们得到两个系统的指数衰减率的熵和信息,基本上是独立的系统的大小。

英文摘要:

We study the approach to equilibrium of systems of gas particles in terms of relative entropy. The systems are modeled by the Kac master equation in arbitrary dimensions. First, we study the Kac system coupled to a thermostat, and secondly connected to a heat reservoir. The use of the Fisher-information allows elementary proofs with weak regularity assumptions. As a result, we obtain for both systems exponential decay rates for the entropy and information that are essentially independent of the size of the systems.

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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