Phase Structure of Dense QCD
نویسندگان
چکیده
منابع مشابه
Phase Structure of Hot and/or Dense QCD with the Schwinger-Dyson Equation
We investigate the phase structure of hot and/or dense QCD using the Schwinger-Dyson equation (SDE) with the improved ladder approximation in the Landau gauge. We show that the phase transition from the two-flavor color superconducting (2SC) phase to the quarkgluon plasma (QGP) phase is of second order, and that the scaling properties of the Majorana mass gap and the diquark condensate are cons...
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We investigate the phase structure of dense QCD using the Schwinger-Dyson equation (SDE) with the improved ladder approximation in the Landau gauge. We use the gluon propagator with the electric mode corrected by Debye screening and the magnetic mode corrected by Landau damping. We solve the coupled SDE for the Majorana masses of the quark and antiquark (separately from the SDE for the Dirac ma...
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Firstly, I give a brief summary of the current understanding of QCD below and near Tc (the critical temperature of the chiral transition). Some emphases are put on the qualitative difference between the Yukawa regime (T ∼ 0) and the Hagedorn regime (T ∼ Tc). Secondly, the dynamical phenomena associated with the chiral transition, in particular, the spectral changes of hadrons in hot and/or dens...
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QCD superconductors in the color-flavor-locked (CFL) phase sustain light Goldstone modes (that will be referred to as generalized pions) that can be described as pairs of particle and/or hole excitations around a gapped Fermi surface. In weak coupling and to leading logarithm accuracy, their form factor, mass and decay constant can be evaluated exactly. These modes are found to satisfy an axial...
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QCD superconductors in the color-flavor-locked (CFL) phase support excitations (generalized mesons) that can be described as pairs of particles or holes (rather than particle-hole) around a gapped Fermi surface. In weak coupling and to leading logarithm accuracy the scalar and pseudoscalar excitations are massless and the vector and axial-vector excitations are massive and degenerate. The massl...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics Supplement
سال: 2010
ISSN: 0375-9687
DOI: 10.1143/ptps.186.417