منابع مشابه
Latent heat in the chiral phase transition
A many-particle system in general possesses two or more different forms of existence called phases. Conversions between these phases are called phase transitions. There are mainly two kinds of phase transitions. One is the first-order phase transition, the other is the secondorder one. In the first-order phase transition, as in the conversion from vapor to liquid, the entropy of the system chan...
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I review the current understanding of the chiral phase transition in QCD, with particular emphasis on recent results in the instanton liquid model.
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We consider the form of the chiral symmetry breaking piece of the effective potential in the linear sigma model. Surprisingly, it allows for a second local minimum at both zero and finite temperature. Even though chiral symmetry is not exact, and therefore is not restored in a true phase transition at finite temperature, this second minimum can nevertheless mimic many of the effects of a first ...
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We employ non–perturbative flow equations to compute the equation of state for two flavor QCD within an effective quark meson model. This yields the temperature and quark mass dependence of quantities like the chiral condensate or the pion mass. Our treatment covers both the chiral perturbation theory domain of validity and the domain of validity of universality associated with critical phenome...
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The intention of this study is the search for signatures of the chiral phase transition in heavy-ion collisions. To investigate the impact of fluctuations, e.g., of the baryon number, at the transition or at a critical point, the linear sigma model is treated in a dynamical (3+1)-dimensional numerical simulation. Chiral fields are approximated as classical mean fields, and quarks are described ...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics Supplement
سال: 2004
ISSN: 0375-9687
DOI: 10.1143/ptps.153.313