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arXiv · hep-lat/0312006

Study of QCD thermodynamics at finite density by Taylor expansion

Shinji Ejiri·Chris R. Allton·Simon J. Hands·Olaf Kaczmarek·Frithjof Karsch·Edwin Laermann·Christian Schmidt
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Abstract

We discuss the phase structure and the equation of state for QCD at non-zero temperature and density. Derivatives of $\ln Z$ with respect to quark chemical potential $μ_q$ up to fourth order are calculated for 2-flavor QCD, enabling estimates of the pressure, quark number density and associated susceptibilities as functions of $μ_q$ via a Taylor series expansion. Also, the phase transition line for 2 and 3-flavor QCD and the critical endpoint in the $(T, μ_q)$ plane are investigated in the low density regime.

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Shinji Ejiri, Chris R. Allton, Simon J. Hands, Olaf Kaczmarek, Frithjof Karsch, Edwin Laermann, Christian Schmidt. 2003-12-20. Study of QCD thermodynamics at finite density by Taylor expansion. https://doi.org/10.1143/ptps.153.118

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