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Zhang, JL; Li, CM; Zong, HS | |
Discussion of thermodynamic features within the PNJL model | |
Source Publication | CHINESE PHYSICS C
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Language | 英语 |
Keyword | Chiral Phase-transition Quark Qcd Susceptibilities Equation |
Abstract | We discuss some thermodynamical features of a QCD system within the two-flavor Polyakov loop extended Nambu-Jona-Lasinio (PNJL) model. Several thermodynamical quantities of interest (pressure, energy density, specific heat, speed of sound, etc.) are investigated and discussed in detail with two different forms of Polyakov loop potential. The effective coupling strength G incorporating a quark feedback (quark condensate) through operator product expansion is also discussed, as well as the relationship between color deconfinement and chiral phase crossover. We find that some thermodynamical quantities have quite different behavior for different Polyakov loop potentials. By changing the characteristic temperature T-0 of the pure Yang-Mills field, we find that when T-0 becomes small, color deconfinement might happen earlier than chiral phase crossover, while their relationship can be determined via some thermodynamical quantities. Furthermore, the behavior of the thermodynamical quantities is quite different in the two different forms of Polyakov loop potential studied. Especially, one of the potentials, specific heat, has two peaks, which correspond to color deconfinement and chiral phase crossover respectively. This interesting phenomenon may shed some light on whether the inflection points of the chiral condensate and deconfinement transitions happen at the same temperature or not for lattice QCD and experimental studies. |
2018 | |
ISSN | 1674-1137 |
Volume | 42Issue:12Pages:123105 |
Subject Area | Physics |
MOST Discipline Catalogue | Physics, Nuclear ; Physics, Particles & Fields |
DOI | 10.1088/1674-1137/42/12/123105 |
Indexed By | SCIE |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.itp.ac.cn/handle/311006/22773 |
Collection | SCI期刊论文 |
Affiliation | 1.[Zhang, Jin-Li 2.Li, Cheng-Ming 3.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China 4.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China 5.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China |
Recommended Citation GB/T 7714 | Zhang, JL,Li, CM,Zong, HS. Discussion of thermodynamic features within the PNJL model[J]. CHINESE PHYSICS C,2018,42(12):123105. |
APA | Zhang, JL,Li, CM,&Zong, HS.(2018).Discussion of thermodynamic features within the PNJL model.CHINESE PHYSICS C,42(12),123105. |
MLA | Zhang, JL,et al."Discussion of thermodynamic features within the PNJL model".CHINESE PHYSICS C 42.12(2018):123105. |
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Discussion of thermo(777KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | Application Full Text |
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