Dynamical nonextensivity or nonextensive dynamics?
arXiv:1909.11000 · doi:10.1140/epjst/e2020-900207-y
Abstract
Dense matter is usually described using some kind of mean field theory (MFT) model based on Boltzmann-Gibbs (BG) extensive statistics. However, in many cases the conditions justifying the use of BG statistics are not fulfilled because the systems considered are explicitly nonextensive. In such cases one either enriches the original MFT by adding some dynamical elements violating extensivity (like, for example, long range correlations or intrinsic fluctuations), or one replaces the BG statistics by its nonextensive counterpart characterized by some nonextensivity parameter q 1 (for q -> 1 one returns to the extensive situation). In this work, using a simple quasi-particle description of dense matter (with interaction modelled by effective fugacities, z) we discuss the mutual interplay of non-extensiveness and dynamics (i.e., q and z).
7 pages, 2 figures
References in corpus (8)
- Multiplicity fluctuations due to the temperature fluctuations in high-energy nuclear collisions
- Modified Hagedorn formula including temperature fluctuation - Estimation of temperatures at RHIC experiments -
- The QCD critical end point in the PNJL model
- Transport coefficients of a hot QCD medium and their relative significance in heavy-ion collisions
- Nonextensive effects on the relativistic nuclear equation of state
- Nonextensive effects in the Nambu--Jona-Lasinio model of QCD
- Consistent nonadditive approach and nuclear equation of state
- Particle yields from numerical simulations