O uso de derivada fracionária na descrição do decaimento não exponencial

Authors

Keywords:

Nonexponential decay, fractional calculus, Mittag-Leffer function

Abstract

In a radioactive decay, the amount of unstable species that remains at time t is given by a differential equation with integer order, known as exponential law. Currently, there are evidence of nonexponential nuclear decay at long time, when the number of species present decays slowly such as $1/t^{n}$. The objective of this work was to consider a generalized differential equation with noninteger order, it was able to describe the experimental data in both regions: exponential and nonexponential region. This behavior, obtained by fractional calculus, in agreement withrecent experimental data in the literature.

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Published

02-03-2014

How to Cite

Lemes, N. H. T., Santos, J. P. C. dos, & Braga, J. P. (2014). O uso de derivada fracionária na descrição do decaimento não exponencial. Sigmae, 2(2), 14–20. Retrieved from https://publicacoes.unifal-mg.edu.br/revistas/index.php/sigmae/article/view/218