The Equation of State for Cold and Dense Strongly Interacting Matter
E. S. Fraga, Y. Hatta, R. D. Pisarski, J. Schaffner-Bielich
Abstract
We discuss recent results for the equation of state for cold and dense strongly interacting matter. We consider the extreme cases of very high densities, where weak-coupling approaches may in principle give reasonable results, and very low densities, where we use the framework of heavy-baryon chiral perturbation theory. We also speculate on the nature of the chiral transition and present possible astrophysical implications.
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