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A Kinetic View of Statistical Physics by Pavel L.,Krapivsky

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13 Diffusive reactions

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The previous chapter focused on population dynamics models, where the reactants can be viewed as perfectly mixed and the kinetics is characterized only by global densities. In this chapter, we study diffusion-controlled reactions, in which molecular diffusion limits the rate at which reactants encounter each other. In this situation, spatial gradients and spatial fluctuations play an essential role in governing the kinetics. As we shall see in this chapter, the spatial dimension plays a crucial role in determining the importance ...

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