Deconfinement and Quark – Gluon Plasma
نویسندگان
چکیده
The theory of confinement and deconfinement is discussed as based on the properties of the QCD vacuum. The latter are described by field correlators of colour-electric and colour-magnetic fields in the vacuum, which can be calculated analytically and on the lattice. As a result one obtains a self-consistent theory of the confined region in the (µ, T) plane with realistic hadron properties. At the boundary of the confining region, the colour-electric confining correlator vanishes, and the remaining correlators describe strong nonperturbative dynamics in the deconfined region with (weakly) bound states. Resulting equation of state for µ = 0, p(T), ε−3P T are in good agreement with lattice data. Phase transition occurs due to evaporation of a part of the colour-electric gluon condensate, and the resulting critical temperatures Tc(µ) for different n f are in good correspondence with available data.
منابع مشابه
Thermodynamics of Strong Interactions
The state of art in studying thermodynamic properties of hot and dense nuclear matter is reviewed with the special emphasis on the confinement–deconfinement transition between hadron matter and quark–gluon plasma. The most popular models used for describing deconfinement are analysed, including statistical bootstrap models, pure phase models, the model of clustered quarks, and the string–flip p...
متن کاملQuark-gluon plasma shells in general relativity
The spherically symmetric thin shells of the quark-gluon plasma are considered within the framework of general relativity and bag model. The equation of state for two-dimensional plasma is suggested, and its features are discussed. The exact equations of motion of the quark-gluon plasma shells are obtained. Also we calculate the parameters of the equilibrium configurations, including the condit...
متن کاملSome Theoretical Analogies in the Description of Strongly Coupled Quark-Gluon Plasma
We study some theoretical aspects of strongly coupled quark gluon plasma, as a function of Coulomb coupling parameter Γ. We study the evaluation of dynamic properties of the BCS/BEC crossover in relativistic fluid. We also discuss some fluid dynamic aspects of the crossover at critical temperature. The shear viscosity is minimum near around the unitary limit. We have clarified the thermal fluct...
متن کاملMelting of P wave bottomonium states in the quark-gluon plasma from lattice NRQCD
We study the fate of P wave bottomonium states in the quark-gluon plasma, using a spectral function analysis of euclidean lattice correlators. The correlators are obtained from lattice QCD simulations with two light quark flavours on highly anisotropic lattices, treating the bottom quark nonrelativistically. We find clear indications of melting immediately after the deconfinement transition.
متن کاملModeling Magnetic Field in Heavy ion Collisions Using Two Different Nuclear Charge Density Distributions
By studying the properties of matter during heavy-ion collisions, a better understanding of the Quark-Gluon plasma is possible. One of the main areas of this study is the calculation of the magnetic field, particularly how the values of conductivity affects this field and how the field strength changes with proper time. In matching the theoretical calculations with results obtained in lab, two diffe...
متن کاملMagnetic phase diagram of dense holographic multiquarks in the quark-gluon plasma
We study phase diagram of the dense holographic gauge matter in the SakaiSugimoto model in the presence of the magnetic field above the deconfinement temperature. Even above the deconfinement, quarks could form colour bound states through the remaining strong interaction if the density is large. We demonstrate that in the presence of the magnetic field for a sufficiently large baryon density, t...
متن کامل