Quasi-stationary analysis of the contact process on annealed scale-free networks

Details Quasi-stationary analysis of the contact process on annealed scale-free networks Quasi-stationary analysis of the contact process on annealed scale-free networks

2011-05-17

arxiv.org/abs/1105.3336v1

Phys. Rev. E 83, 066113 (2011)

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

10.1103/PhysRevE.83.066113

We present an analysis of the quasi-stationary (QS) state of the contact process (CP) on annealed scale-free networks using a mapping of the CP dynamics in a one-step processes and analyzing numerically and analytically the corresponding master equation. The relevant QS quantities determined via the master equation exhibit an excellent agreement with direct QS stochastic simulations of the CP. The high accuracy of the resulting data allows to probe the strong corrections to scaling present in both the critical and supercritical regions, corrections that mask the correct finite size scaling obtained analytically by applying an exact heterogeneous mean-field approach. {Our results represent a promising starting point for a deeper understanding of the contact process and absorbing phase transitions on real (quenched) complex networks

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