A Taylor expansion around nonzero isospin chemical potentials yields the first lattice QCD pressure estimates along the electric charge chemical potential axis.
QCD thermodynamics at non-zero isospin asymmetry
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abstract
We study the thermodynamic properties of QCD at nonzero isospin chemical potential using improved staggered quarks at physical quark masses. In particular, we discuss the determination of the equation of state at zero and nonzero temperatures and show results. Using the results for the isospin density $n_I$, we also determine the phase diagram in the $(n_I,T)$-plane.
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Equation of state of isospin asymmetric QCD with small baryon chemical potentials
A Taylor expansion around nonzero isospin chemical potentials yields the first lattice QCD pressure estimates along the electric charge chemical potential axis.