Demonstrates BSQ diffusion in quark gluon plasma, indicating a new stability analysis approach.
The quark gluon plasma produced in heavy-ion collisions has three relevant conserved charges: baryon number (B), strangeness (S), and electric charge (Q). Here we derive the Israel-Stewart framework for BSQ diffusion coupled to shear and bulk viscosity and the thermodynamic derivatives needed to couple this to a BSQ equation of state. We reproduce a subset of the J terms in the DNMR approach (i.e., terms of order Kn-Re^-1) and propose a technique to derive other terms from the maximum entropy principle. Finally, we preform a stability analysis that can be used to constraint transport coefficients in BSQ hydrodynamics.
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Almaalol et al. (2025) studied this question.
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