Loop Current and Antiferromagnetic States in Fermionic Hubbard Model with Staggered Flux at Half Filling

研究成果: Conference article査読

3 被引用数 (Scopus)

抄録

Anticipating realization of interacting fermions in an optical lattice with a large gauge field, we consider phase transitions and loop currents in a two-dimensional S = 1/2 fermionic-Hubbard model with π/2-staggered flux at half filling. We use a variational Monte Carlo method, which is reliable even for strong correlations. As a trial wave function, a coexistent state of antifferomagnetic and staggered-flux orders is studied. In a strongly correlated regime, the ground state becomes an insulating coexistent state with loop currents. By comparing fermions with bosons, we discuss an important role of Pauli principle.

本文言語English
ページ(範囲)13-16
ページ数4
ジャーナルPhysics Procedia
81
DOI
出版ステータスPublished - 2016
イベント28th International Symposium on Superconductivity, ISS 2015 - Tokyo, Japan
継続期間: 2015 11月 162015 11月 18

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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