Equation of state of isospin asymmetric QCD with small baryon chemical potentials

We extend our measurement of the equation of state of isospin asymmetric QCD to small baryon and strangeness chemical potentials, using the leading order Taylor expansion coefficients computed directly at non-zero isospin chemical potentials. Extrapolating the fully connected contributions to vanishing pion sources is particularly challenging, which we overcome by using information from isospin chemical potential derivatives evaluated numerically. Using the Taylor coefficients, we present, amongst others, first results for the equation of state along the electric charge chemical potential axis, which is potentially of relevance for the evolution of the early Universe at large lepton flavour asymmetries.

Authors

Publication Details

Published
2025-02-06
DOI
https://doi.org/10.22323/1.466.0176
Citations
2
Primary Topic
Cold Atom Physics and Bose-Einstein Condensates
Type
article
Field-Weighted Citation Impact
2.49

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article

Equation of state of isospin asymmetric QCD with small baryon chemical potentials

Gergely Markó, Gergely Endrődi, Bastian B. Brandt
2 citations
Cold Atom Physics and Bose-Einstein Condensates
2.49
article

Equation of state of isospin asymmetric QCD with small baryon chemical potentials

Gergely Markó, Gergely Endrődi, Bastian B. Brandt
article en
2 citations

Abstract

We extend our measurement of the equation of state of isospin asymmetric QCD to small baryon and strangeness chemical potentials, using the leading order Taylor expansion coefficients computed directly at non-zero isospin chemical potentials. Extrapolating the fully connected contributions to vanishing pion sources is particularly challenging, which we overcome by using information from isospin chemical potential derivatives evaluated numerically. Using the Taylor coefficients, we present, amongst others, first results for the equation of state along the electric charge chemical potential axis, which is potentially of relevance for the evolution of the early Universe at large lepton flavour asymmetries.

Deutsche Forschungsgemeinschaft, Gauss Centre for Supercomputing, Leibniz-Gemeinschaft, National Research, Development and Innovation Office, Leibniz-Rechenzentrum
Openalex Percentile: Top 14%
Cold Atom Physics and Bose-Einstein Condensates
2.49
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