Quantum liquids resulted from the models with four-fermion interaction
Abstract
A (nearly) perfect liquid discovered in the experements with ultrarelativistic heavy ion collisions is investigated by studying the quark ensembles with four-fermion interection as a fundamental theoretical approach. The comparative analysis of several quantum liquid models is performed and it results in the conclusion that the presence of gas---liquid phase transition is their characteristic feature. The problem of instability of the quark droplets of small quark number is discussed and argued to be rooted in the chiral soliton formation. An existence of mixed phase of the vacuum and baryon matter is proposed as a possible reason of the latter stability.
Keywords
Cite
@article{arxiv.1307.0686,
title = {Quantum liquids resulted from the models with four-fermion interaction},
author = {S. V. Molodtsov and G. M. Zinovjev},
journal= {arXiv preprint arXiv:1307.0686},
year = {2014}
}
Comments
20 pages, 23 figures, minor text improvements, new references, arXiv admin note: substantial text overlap with arXiv:1103.3351