Topological term, QCD anomaly, and the η0 chiral soliton lattice in rotating baryonic matter

Kentaro Nishimura, Naoki Yamamoto

Research output: Contribution to journalArticlepeer-review


We study the ground states of low-density hadronic matter and high-density color-flavor locked color superconducting phase in three-flavor QCD at finite baryon chemical potential under rotation. We find that, in both cases under sufficiently fast rotation, the combination of the rotation-induced topological term for the η0 meson and the QCD anomaly leads to an inhomogeneous condensate of the η0 meson, known as the chiral soliton lattice (CSL). We find that, when baryon chemical potential is much larger than isospin chemical potential, the critical angular velocity for the realization of the η0 CSL is much smaller than that for the π0 CSL found previously. We also argue that the η0 CSL states in flavor-symmetric QCD at low density and high density should be continuously connected, extending the quark-hadron continuity conjecture in the presence of the rotation.

Original languageEnglish
JournalUnknown Journal
Publication statusPublished - 2020 Mar 31

ASJC Scopus subject areas

  • General

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