Exact calculations of first-passage quantities on recursive networks

Details Exact calculations of first-passage quantities on recursive networks Exact calculations of first-passage quantities on recursive networks

2012-02-22

arxiv.org/abs/1202.4903v1

Phys. Rev. E 85, 026113 (2012)

Physics

Condensed Matter

Statistical Mechanics

16 pages, 10 figures

Scientific paper

We present general methods to exactly calculate mean-first passage quantities on self-similar networks defined recursively. In particular, we calculate the mean first-passage time and the splitting probabilities associated to a source and one or several targets; averaged quantities over a given set of sources (e.g., same-connectivity nodes) are also derived. The exact estimate of such quantities highlights the dependency of first-passage processes with respect to the source-target distance, which has recently revealed to be a key parameter to characterize transport in complex media. We explicitly perform calculations for different classes of recursive networks (finitely ramified fractals, scale-free (trans)fractals, non-fractals, mixtures between fractals and non-fractals, non-decimable hierarchical graphs) of arbitrary size. Our approach unifies and significantly extends the available results in the field.

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