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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 6

Special Issue Editors


E-Mail Website
Guest Editor
Institute of Physics, Jan Kochanowksi University, Kielce, Poland
Interests: nonextensive statistics; QCD; high energy collisions; transport properties in quark-gluon plasma; thermal field theory

E-Mail Website
Guest Editor
Institute of Physics, Jan Kochanowski University, Kielce, Poland
Interests: collisions of relativistic ions; multiparticle production processes; fluctuations and correlations; cosmic rays

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

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Entropy is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Tsallis entropy
  • nonadditive statistics
  • high-energy physics
  • power-law distributions
  • complexity

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This special issue is now open for submission.
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