Journal
PHYSICAL REVIEW E
Volume 76, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.76.056104
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Funding
- National Research Foundation of Korea [R01-2007-000-10910-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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We study dynamical scaling of flux fluctuation (sigma) over bar (t) from the one-random-walker model on regular lattices and complex networks and compare it to the surface width W(t) of a corresponding growth model. On the regular lattices, we analytically show that (sigma) over bar (t) undergoes a crossover from the nontrivial scaling regime to the trivial one by increasing time t, and we verify the results by numerical simulations. In contrast to the results on the regular lattices, (sigma) over bar (t) does not show any crossover behavior on complex networks and satisfies the scaling relation (sigma) over bar (t)similar to t(1/2) for any t. On the other hand, we show that W(t) of the corresponding model on complex networks has two different scaling regimes, W similar to t(1/2) for t < N and W(t)similar to t for t >> N.
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