منابع مشابه
Mixed Quark-Gluon condensate at finite temperature and density in the global color symmetry model
The mixed quark-gluon condensate is another chiral order parameter in QCD, which plays an important role in the application of QCD sum rules. In this letter, we study the properties of quark-gluon mixed condensate at finite temperature and quark chemical potential in the framework of global color symmetry model. Using an infrareddominant model gluon two-point function, we find that the behavior...
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We begin with the discussion of the relationship between the trace of the energy momentum tensor and the gluon condensate at finite temperatures. Using the recent numerical data from the simulations of lattice gauge theory for quantum chromodynamics(QCD) we present the computational evaluations for the gluon condensate. A short discussion of the properties of deconfinement and the implications ...
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Confinement may be more easily demonstrated at finite temperature using the Polyakov loop than at zero temperature using the Wilson loop. A natural mechanism for confinement can arise via the coupling of the adjoint Polyakov loop to F 2 μν . We demonstrate this mechanism with a one-loop calculation of the effective potential for SU(2) gluons in a background field consisting of a non-zero color ...
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The quark-gluon mixed condensate g〈q̄σμνGμνq〉 is studied using SU(3)c lattice QCD with the Kogut-Susskind fermion at the quenched level. Using the lattices as β = 6.0 with 16 × Nt(Nt = 16, 12, 10, 8, 6, 4), β = 6.1 with 20 × Nt(Nt = 20, 12, 10, 8, 6) and β = 6.2 with 24 ×Nt(Nt = 24, 16, 12, 10, 8) in high statistics of 100-1000 gauge configurations, we perform accurate measurement of the thermal...
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The quantum entropy at finite temperatures is analyzed by using models for colored quarks making up the physical states of the hadrons. We explicitly work out some special models for the structure of the states of SU(2) and SU(3) relating to the effects of the temperature on the quantum entropy. We show that the entropy of the singlet states monotonically decreases meaning that the mixing of th...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1996
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(96)01209-9