Condensed Matter / Koga Lab.

Papers

Preprints

• Stealthy hyperuniform disorder: A new route to controlling electric states and magnetic phase transition in correlated systems
  A. Koga and T. Sugimoto, arXiv:2604.19041.
• Holographic Aspects of Dynamical Mean-Field Theory
  K. Okunishi and A. Koga, arXiv:2509.19704.

2026

• Generalized Nagaoka ferromagnetism accompanied by flavor-selective Mott states in an SU(N) Fermi-Hubbard model
  J. Fujii, K. Yamamoto, and A. Koga, Phys. Rev. B 113, 115132 1-11 (2026).
• Elliptical-rod geometries enhance photonic band gaps in disordered stealthy hyperuniform photonic crystals
  K. Asakura, K. Yamamoto, and A. Koga, J. Phys. Soc. Jpn. 95, 024711 1-6 (2026).