PoS - Proceedings of Science
Volume 396 - The 38th International Symposium on Lattice Field Theory (LATTICE2021) - Oral presentation
Equation of state of QCD at finite chemical potential from an alternative expansion scheme
P. Parotto*, S. Borsanyi, Z. Fodor, J. Guenther, R. Kara, S.D. Katz, A. Pasztor, C. Ratti and K. Szabo
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Pre-published on: May 16, 2022
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Abstract
The equation of state of Quantum Chromodynamics (QCD) at finite density
is currently known only in a limited range in the baryon chemical potential $\mu_B$. This
is due to fundamental shortcomings of traditional methods such as Taylor expansion
around $\mu_B=0$. In this contribution, we present an alternative scheme
\cite{Borsanyi:2021sxv} that displays substantially improved convergence over the Taylor
expansion method. We calculate the alternative expansion coefficients in the
continuum, and show our results for the thermodynamic observables up to
$\mu_B/T\le3.5$.
DOI: https://doi.org/10.22323/1.396.0460
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