Complexity in High-Energy Physics: A Nonadditive Entropic Perspective
A special issue of Entropy (ISSN 1099-4300). This special issue belongs to the section "Statistical Physics".
Deadline for manuscript submissions: 31 January 2026 | Viewed by 45
Special Issue Editors
Interests: nonextensive statistics; QCD; high energy collisions; transport properties in quark-gluon plasma; thermal field theory
Special Issue Information
Dear Colleagues,
Complexity typically arises in systems that occupy the intermediate regime between perfect order and complete stochasticity. Although long associated with biology, economics, and ecology, signatures of complex behaviour are now being identified across high-energy physics as well. A defining characteristic of such complexity is the breakdown of simple exponential laws, most clearly evident in power-law distributions. These distributions reveal the existence of long-range correlations, memory effects, and non-equilibrium dynamics features that conventional Boltzmann–Gibbs statistics cannot adequately accommodate.
Over the past decade, nonadditive statistical frameworks, most notably those based on Tsallis entropy, have proven exceptionally successful in modeling this behavior. Power–law distributions derived from non-additive entropy describe a wide array of observables in high-energy collisions, ranging from transverse-momentum spectra and bulk thermodynamic properties of the quark–gluon plasma to the in-medium evolution of energetic partons.
This Special Issue focuses on the interface between complex-systems science and high-energy physics through the lens of nonadditive statistical mechanics. It brings together theoretical analyses and phenomenological investigations that trace the origins of nonadditive statistics, clarify its physical interpretation, and demonstrate its utility in explaining the emergent complexity characteristic of high-energy phenomena.
Dr. Bhattacharyya Trambak
Prof. Dr. Maciej Rybczynski
Guest Editors
Manuscript Submission Information
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Keywords
- Tsallis entropy
- nonadditive statistics
- high-energy physics
- power-law distributions
- complexity
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