Phase Diagram and Critical Properties within an Effective Model of QCD: The Nambu–Jona-Lasinio Model Coupled to the Polyakov Loop
We investigate the phase diagram of the so-called Polyakov–Nambu–Jona-Lasinio model at finite temperature and non-zero chemical potential with three quark flavors. Chiral and deconfinement phase transitions are discussed and the relevant order-like parameters are analyzed. The results are compared w...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2010-07-01
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| Series: | Symmetry |
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| Online Access: | http://www.mdpi.com/2073-8994/2/3/1338/ |
| _version_ | 1798004027610365952 |
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| author | Célia A. de Sousa Hubert Hansen Maria C. Ruivo Pedro Costa |
| author_facet | Célia A. de Sousa Hubert Hansen Maria C. Ruivo Pedro Costa |
| author_sort | Célia A. de Sousa |
| collection | DOAJ |
| description | We investigate the phase diagram of the so-called Polyakov–Nambu–Jona-Lasinio model at finite temperature and non-zero chemical potential with three quark flavors. Chiral and deconfinement phase transitions are discussed and the relevant order-like parameters are analyzed. The results are compared with simple thermodynamic expectations and lattice data. We present the phase diagram in the (T, μB) plane, paying special attention to the critical end point: as the strength of the flavor-mixing interaction becomes weaker, the critical end point moves to low temperatures and can even disappear. |
| first_indexed | 2024-04-11T12:17:00Z |
| format | Article |
| id | doaj.art-50903160ff544b41aeb0d714818705e4 |
| institution | Directory Open Access Journal |
| issn | 2073-8994 |
| language | English |
| last_indexed | 2024-04-11T12:17:00Z |
| publishDate | 2010-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Symmetry |
| spelling | doaj.art-50903160ff544b41aeb0d714818705e42022-12-22T04:24:16ZengMDPI AGSymmetry2073-89942010-07-01231338137410.3390/sym2031338Phase Diagram and Critical Properties within an Effective Model of QCD: The Nambu–Jona-Lasinio Model Coupled to the Polyakov LoopCélia A. de SousaHubert HansenMaria C. RuivoPedro CostaWe investigate the phase diagram of the so-called Polyakov–Nambu–Jona-Lasinio model at finite temperature and non-zero chemical potential with three quark flavors. Chiral and deconfinement phase transitions are discussed and the relevant order-like parameters are analyzed. The results are compared with simple thermodynamic expectations and lattice data. We present the phase diagram in the (T, μB) plane, paying special attention to the critical end point: as the strength of the flavor-mixing interaction becomes weaker, the critical end point moves to low temperatures and can even disappear.http://www.mdpi.com/2073-8994/2/3/1338/chiral symmetryphase transitionrestoration of symmetry |
| spellingShingle | Célia A. de Sousa Hubert Hansen Maria C. Ruivo Pedro Costa Phase Diagram and Critical Properties within an Effective Model of QCD: The Nambu–Jona-Lasinio Model Coupled to the Polyakov Loop Symmetry chiral symmetry phase transition restoration of symmetry |
| title | Phase Diagram and Critical Properties within an Effective Model of QCD: The Nambu–Jona-Lasinio Model Coupled to the Polyakov Loop |
| title_full | Phase Diagram and Critical Properties within an Effective Model of QCD: The Nambu–Jona-Lasinio Model Coupled to the Polyakov Loop |
| title_fullStr | Phase Diagram and Critical Properties within an Effective Model of QCD: The Nambu–Jona-Lasinio Model Coupled to the Polyakov Loop |
| title_full_unstemmed | Phase Diagram and Critical Properties within an Effective Model of QCD: The Nambu–Jona-Lasinio Model Coupled to the Polyakov Loop |
| title_short | Phase Diagram and Critical Properties within an Effective Model of QCD: The Nambu–Jona-Lasinio Model Coupled to the Polyakov Loop |
| title_sort | phase diagram and critical properties within an effective model of qcd the nambu jona lasinio model coupled to the polyakov loop |
| topic | chiral symmetry phase transition restoration of symmetry |
| url | http://www.mdpi.com/2073-8994/2/3/1338/ |
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