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Nucleation of a three-state spin model on complex networks

Chen, Hanshuang; Shen, Chuansheng - In: Physica A: Statistical Mechanics and its Applications 424 (2015) C, pp. 97-104

We study the metastability and nucleation of the Blume–Capel model on complex networks, in which each node can take one … with distinct nucleation scenarios depending on the values of h and λ: the system undergoes a two-step nucleation process … from −1 configuration to 0 configuration and then to 1 configuration (region I); nucleation becomes a one-step process …

Persistent link: https://www.econbiz.de/10011194020

Bose–Einstein condensation in satisfiability problems

Angione, Claudio; Occhipinti, Annalisa; Stracquadanio, … - In: European Journal of Operational Research 227 (2013) 1, pp. 44-54

This paper is concerned with the complex behavior arising in satisfiability problems. We present a new statistical physics-based characterization of the satisfiability problem. Specifically, we design an algorithm that is able to produce graphs starting from a k-SAT instance, in order to analyze...

Persistent link: https://www.econbiz.de/10010608522

A κ-deformed model of growing complex networks with fitness

Stella, Massimo; Brede, Markus - In: Physica A: Statistical Mechanics and its Applications 407 (2014) C, pp. 360-368

The Barabási–Bianconi (BB) fitness model can be solved by a mapping between the original network growth model to an idealized bosonic gas. The well-known transition to Bose–Einstein condensation in the latter then corresponds to the emergence of “super-hubs” in the network model....

Persistent link: https://www.econbiz.de/10011062373