arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.08444cond-mat.stat-mechphysics.chem-ph
收藏

化学热力学的信息几何不等式

Information Geometric Inequalities of Chemical Thermodynamics

Kohei Yoshimura, Sosuke Ito

摘要:

我们研究化学热力学和信息几何之间的联系。我们澄清了理想稀溶液的吉布斯自由能和一个称为$f$ -发散的信息几何量之间的关系。从这个关系,我们得到的信息几何不等式,给出了一个速度限制的吉布斯自由能和一般的化学波动的变化率。这些信息几何不等式可以看作是速率方程描述的化学反应网络的Cramér-Rao不等式的推广,其中非归一化浓度分布比概率分布更重要.它们适用于阻尼振荡反应网络和系统,其中总浓度不守恒,使得分布不能归一化。我们还制定了速度和时间之间的权衡关系的浓度分布的流形上使用的几何结构引起的$f$发散。我们的结果适用于封闭和开放的化学反应网络,因此,它们是广泛有用的化学系统的热力学分析从信息几何的观点。

英文摘要:

We study a connection between chemical thermodynamics and information geometry. We clarify a relation between the Gibbs free energy of an ideal dilute solution and an information-geometric quantity called an $f$-divergence. From this relation, we derive information-geometric inequalities that give a speed limit for a changing rate of the Gibbs free energy and a general bound of chemical fluctuations. These information-geometric inequalities can be regarded as generalizations of the Cramér--Rao inequality for chemical reaction networks described by rate equations, where unnormalized concentration distributions are of importance rather than probability distributions. They hold true for damped oscillatory reaction networks and systems where the total concentration is not conserved so that the distribution cannot be normalized. We also formulate a trade-off relation between speed and time on a manifold of concentration distribution by using the geometrical structure induced by the $f$-divergence. Our results apply to both closed and open chemical reaction networks, thus they are widely useful for thermodynamic analysis of chemical systems from the viewpoint of information geometry.

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。

↑