Hydrodynamics of nuclear matter in the chiral limit

Abstract

Using the Poisson bracket method, we construct the hydrodynamics of nuclear matter in the chiral limit, which describes the dynamics of all low-energy degrees of freedom, including the fluid-dynamical and pionic ones. The hydrodynamic equations contain, beside five Euler equations of relativistic fluid dynamics, Nf^2-1 second order equations describing propagating pions and Nf^2-1 first order equations describing the advection of the baryonic vector isospin charges. We present hydrodynamic arguments showing that the pion velocity vanishes at the second order phase transition at Nf=2.

9 pages; small improvements. Version published in PRL

References in corpus (2)

• Color-Flavor Locking and Chiral Symmetry Breaking in High Density QCD
• Chiral Fluid Dynamics and Collapse of Vacuum Bubbles

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