Size-effect at finite temperature in a quark-antiquark effective model in phase space
Abstract
A quark-antiquark effective model is studied in a toroidal topology at finite temperature. The model is described by a Schr\"odinger equation with linear potential which is embedded in a torus. The following aspects are analysed: (i) the nonclassicality structure using the Wigner function formalism; (ii) finite temperature and size-effects are studied by a generalization of Thermofield Dynamics written in phase space; (iii) in order to include the spin of the quark, Pauli-like Schr\"odinger equation is used; (iv) analysis of the size-effect is considered to observe the fluctuation in the ground state. The size effect goes to zero at zero, finite and high temperatures. The results emphasize that the spin is a central aspect for this quark-antiquark effective model.
Keywords
Cite
@article{arxiv.2104.11661,
title = {Size-effect at finite temperature in a quark-antiquark effective model in phase space},
author = {G. X. A. Petronilo and R. G. G. Amorim and S. C. Ulhoa and A. F. Santos and A. E. Santana and Faqir C. Khanna},
journal= {arXiv preprint arXiv:2104.11661},
year = {2021}
}
Comments
20 pages, 5 figures, accepted for publication in IJMPA