Nonlinear Chemical Dynamics

Brandeis大学的Irving Epstein和Anatol Zhabotinsky受到理论和计算化学计划的支持，致力于非线性化学动力学的研究，特别是反应扩散系统中图案形成的实验和计算研究。光将被用来产生新类型的图案。我们将在全局负反馈下研究一个很少被研究的分叉(短波不稳定性)，并将研究受迫和非受迫混沌和多周期化学振子。将探索在非均匀介质中以及在一个新的含次磷酸盐的化学体系中的花样形成。化学中的花样形成是现代宏观化学动力学的一个中心问题。反应扩散系统构成了神经生物学、催化和生态学中模式形成的最方便的模拟模型。这些现象涉及全球反馈和/或化学波在非均匀介质中的传播。

Irving Epstein and Anatol Zhabotinsky of Brandeis University are supported by the Theoretical and Computational Chemistry Program to pursue research on nonlinear chemical dynamics, specifically experimental and computational investigations of pattern-formation in reaction-diffusion systems. Light will be used to produce new types of patterns. A rarely studied bifurcation (the short-wave instability) will be studied under global negative feedback, and forced and unforced chaotic and multiperiodic chemical oscillators will be investigated. Pattern formation in nonuniform media, and in a new hypophosphite-containing chemical system, will be explored.Pattern formation in chemistry is a central problem in modern macroscopic chemical kinetics. Reaction-diffusion systems constitute the most convenient analog models for pattern formation in neurobiology, catalysis, and ecology. These phenomena involve global feedback and/or the propagation of chemical waves through nonuniform media.