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Deconfinement phase transition and the quark condensate
1Institut für Kernphysik, Technische Universität Darmstadt, Schlossgartenstrasse 9, D-64289 Darmstadt, Germany.
Physical Review Letters
|October 2, 2009
Summary
We investigated the dual quark condensate, a key signal for Quantum Chromodynamics (QCD) phase transitions. Our findings reveal its temperature dependence, shedding light on the interplay between chiral and deconfinement transitions in quenched QCD.
Area of Science:
- * Theoretical High Energy Physics
- * Quantum Chromodynamics (QCD)
- * Statistical Mechanics
Background:
- * The confinement-deconfinement phase transition in QCD is a fundamental phenomenon.
- * The dual quark condensate has been proposed as an order parameter for center symmetry.
- * Previous definitions were within the lattice QCD framework.
Purpose of the Study:
- * To determine the ordinary and dual quark condensates using functional methods.
- * To investigate the temperature dependence of these condensates.
- * To explore the interplay between chiral symmetry breaking and deconfinement in quenched QCD.
Main Methods:
- * Utilizing functional methods, specifically Dyson-Schwinger equations.
- * Employing a formulation for the quark propagator on a torus.
- * Analyzing the temperature dependence of quark condensates.
Main Results:
- * The ordinary and dual quark condensates were successfully determined.
- * The temperature dependence of these condensates was established.
- * Insights into the relationship between chiral and deconfinement transitions were gained.
Conclusions:
- * The dual quark condensate is a viable signal for the QCD confinement-deconfinement transition.
- * Functional methods provide a powerful tool for studying QCD phase transitions.
- * The study offers a deeper understanding of the coupled chiral and deconfinement dynamics in quenched QCD.
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