Correlated avalanches in sandpiles

Rosalba García Millán

Characterising a stochastic process with long-range correlations, such as a sequence of avalanches in the Oslo Model, requires to make a decision on how to sample the process: do we consider consecutive avalanches, which are strongly anti correlated, or do we consider avalanches separated by enough avalanches, so that the chosen ones are practically independent events? Since the Oslo Model is Abelian, the moments of the probability distribution of the avalanche size, counter intuitively, scale linearly with the drive size and this indicates which is the best option. The relation with hyper uniformity will be also discussed, time permitting.

Location

Centre for Complexity Science, Imperial College London

Date & Time

Thursday 2nd March 2017 at 14.00hrs

Information

http://www.imperial.ac.uk/complexity-science/seminars/