Across five real gas equations of state, nuclear incompressibility K0 is positively correlated with the liquid-gas critical temperature and density, and negatively correlated with the quarkyonic transition density and the peak speed of sound.
Quantum van der Waals and Walecka models of nuclear matter
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abstract
A comparable study of the quantum van der Waals and Walecka models of nuclear matter is presented. Each model contains two parameters which characterize the repulsive and attractive interactions between nucleons. These parameters are fixed in order to reproduce the known properties of the nuclear ground state. Both models predict a first-order liquid-gas phase transition and a very similar behavior in the vicinity of the critical point. Critical exponents of the quantum van der Waals model are studied both analytically and numerically. There are important differences in the behavior of the thermodynamical functions of the considered models at large values of the nucleon number density. At the same time both models fall into the universality class of mean-field theory.
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Correlations between nuclear incompressibility, liquid-gas critical point, and quarkyonic transition
Across five real gas equations of state, nuclear incompressibility K0 is positively correlated with the liquid-gas critical temperature and density, and negatively correlated with the quarkyonic transition density and the peak speed of sound.