Exact calculation of the probabilities of rare events in cluster-cluster aggregation

2024/05/07 by R. Rajesh, Rajesh, R., V. Subashri +3 · 1 citation
Computer Science · #Advanced Clustering Algorithms Research #Biological Physics (physics.bio-ph) #Classical Physics (physics.class-ph) #Data Analysis #FOS: Physical sciences #Statistical Mechanics (cond-mat.stat-mech) #Statistics and Probability (physics.data-an)

paper · pdf · doi:10.48550/arxiv.2405.04201

openalex publication_date 2024/05/07 · openalex created_date 2024/05/10 · openalex updated_date 2026/07/28

Abstract

We develop an action formalism to calculate probabilities of rare events in cluster-cluster aggregation for arbitrary collision kernels and establish a pathwise large deviation principle with total mass being the rate. As an application, the rate function for the number of surviving particles as well as the optimal evolution trajectory are calculated exactly for the constant, sum and product kernels. For the product kernel, we argue that the second derivative of the rate function has a discontinuity. The theoretical results agree with simulations tailored to the calculation of rare events.

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• On one-dimensional Cluster cluster model

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