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arXiv · 2003.12567

Quark and pion condensates at finite isospin density in chiral perturbation theory

Prabal Adhikari·Jens O. Andersen
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Abstract

In this paper, we consider two-flavor QCD at zero temperature and finite isospin chemical potential ($\mu_I$) using a model-independent analysis within chiral perturbation theory at next-to-leading order. We calculate the effective potential, the chiral condensate and the pion condensate in the pion-condensed phase at both zero and nonzero pionic source. We compare our finite pionic source results for the chiral condensate and the pion condensate with recent (2+1)-flavor lattice QCD results and find that they are in excellent agreement.

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Prabal Adhikari, Jens O. Andersen. 2020-03-27. Quark and pion condensates at finite isospin density in chiral perturbation theory. https://doi.org/10.1140/epjc%2Fs10052-020-08574-8

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