https://doi.org/10.1140/epja/s10050-020-00169-x
Regular Article –Theoretical Physics
The evolution of information entropy components in relativistic heavy-ion collisions
School of mathematics and physics, China University of Geosciences (Wuhan), Wuhan, 430074, China
* e-mail: chengang1@cug.edu.cn
Received:
8
February
2020
Accepted:
22
May
2020
Published online:
15
June
2020
The time evolution process of thermodynamic entropy 
, multiplicity entropy 
, and configuration entropy 
at the relativistic heavy-ion collisions is studied using the AMPT model to generate central Au + Au collision events. By superimposing the three kinds of information entropy, we can get a complete information entropy of the system to describe the physical process of the relativistic heavy-ion collisions. The results show that the four stages of the time evolution process of the system entropy S seem to correspond to the four physical processes in the relativistic heavy-ion collision, indicating that the total entropy of the system can reflect the physical information more accurately in the relativistic heavy-ion collision. This also shows that Shannon information entropy does provides an effective tool to study the evolution process in the relativistic heavy-ion collisions.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2020
