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Directed percolation in temporal networks
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DOI：10.1103/PhysRevResearch.4.L022047.png)
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Connectivity and reachability on temporal networks, which can describe the spreading of a disease, the dissemination of information, or the accessibility of a public transport system over time, have been among the main contemporary areas of study in complex systems for the last decade. However, while isotropic percolation theory successfully describes connectivity in static networks, a similar description has not yet been developed for temporal networks. Here, we address this problem and formalize a mapping of the concept of temporal network reachability to percolation theory. We show that the limited-waiting-time reachability, a generic notion of constrained connectivity in temporal networks, displays a directed percolation phase transition in connectivity. Consequently, the critical percolation properties of spreading processes on temporal networks can be estimated by a set of known exponents characterizing the directed percolation universality class. This result is robust across a diverse set of temporal network models with different temporal and topological heterogeneities, while by using our methodology we uncover similar reachability phase transitions in real temporal networks too. These findings open up an avenue to apply theory, concepts, and methodology from the well-developed directed percolation literature to temporal networks.
Keyword:
SELF-ORGANIZED CRITICALITY
PHASE-TRANSITIONS
MODELS
TURBULENCE
LATTICE
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4.2
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7.6K
被引数:
2.7W
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