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Effects of network heterogeneity on phases of the quenched contact process in directed complex networks

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  • Le, Quang Anh
  • Jung, Nam
  • Lee, KyoungEun
  • Lee, Jae Woo

Abstract

We investigate the quenched contact process within directed complex networks, including directed random networks and directed scale-free networks. Additionally, we explore the contact process within directed general small-world networks and directed hierarchical modular networks. We observed the presence of a Griffiths phase characterized by continuously varying critical exponents of the order parameter. Notably, the directionality of the networks plays a significant role in influencing the Griffiths phase within the quenched contact process. We suggest that the presence of strongly directed connecting clusters is responsible for the changes in the continuously varying critical exponents of the order parameter within directed networks.

Suggested Citation

  • Le, Quang Anh & Jung, Nam & Lee, KyoungEun & Lee, Jae Woo, 2024. "Effects of network heterogeneity on phases of the quenched contact process in directed complex networks," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 646(C).
    • Handle: RePEc:eee:phsmap:v:646:y:2024:i:c:s0378437124003844
    DOI: 10.1016/j.physa.2024.129875
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    References listed on IDEAS

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    3. Paolo Moretti & Miguel A. Muñoz, 2013. "Griffiths phases and the stretching of criticality in brain networks," Nature Communications, Nature, vol. 4(1), pages 1-10, December.
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