Multicomponent meson superfluids in chiral perturbation theory

We show that multicomponent meson systems can be described by chiral perturbation theory. We chiefly focus on a system of two pion gases at different isospin chemical potential, deriving the general expression of the chiral Lagrangian, the ground state properties and the spectrum of the low-energy e...

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Veröffentlicht in:	Physical review. D 2019-05, Vol.99 (9), p.096011, Article 096011
Hauptverfasser:	Lepori, L., Mannarelli, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemical potential Chiral dynamics Locking Organic chemistry Perturbation theory Phase transitions Stability Superfluidity
Online-Zugang:	Volltext
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