Growing Network Fitness Model

Bianconi-Barabási: each node has fitness η. New nodes attach with probability ∝ η_i·k_i. Broad fitness distributions cause "Bose-Einstein condensation" — one node captures a finite fraction of all links.

Nodes: 0
Top node degree: 0
Top fitness:
Condensation:
k_max/⟨k⟩ =
Condensation: k_max/total_k → finite fraction
Critical fitness dist (Bose analogy):
Σ ρ(η)/(μ-η) diverges → condensate
Degree distribution — condensation shows bump at high k