Chiral Lagrangian and spectral sum rules for dense two-color QCD

Takuya Kanazawa, Tilo Wettig, Naoki Yamamoto

研究成果: Article査読

35 被引用数 (Scopus)

抄録

We analytically study two-color QCD with an even number of flavors at high baryon density. This theory is free from the fermion sign problem. Chiral symmetry is broken spontaneously by the diquark condensate. Based on the symmetry breaking pattern we construct the low-energy effective Lagrangian for the Nambu-Goldstone bosons. We identify a new epsilon-regime at high baryon density in which the quark mass dependence of the partition function can be determined exactly. We also derive Leutwyler-Smilga-type spectral sum rules for the complex eigenvalues of the Dirac operator in terms of the fermion gap. Our results can in principle be tested in lattice QCD simulations.

本文言語English
論文番号003
ジャーナルJournal of High Energy Physics
2009
8
DOI
出版ステータスPublished - 2009
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学

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