125 citations · 1.3k across the 105 of their papers we have counts for
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Phase Structure of Anisotropic Antiferromagnetic Heisenberg Model on Layered Triangular Lattice: Spiral State and Deconfined Spin Liquid
Kazuya Nakane, Takeshi Kamij, Ikuo Ichinose
In the present paper, we study spin- antiferromagnetic (AF) Heisenberg model on layered anisotropic triangular lattice and obtain its phase structure. We use the Schwi…
Antiferromagnetic, metal-insulator, and superconducting phase transitions in underdoped cuprates: Slave-fermion t-J model in the hopping expansion
Akihiro Shimizu, Koji Aoki, Kazuhiko Sakakibara +2
In the present paper, we study a system of doped antiferromagnet in three dimensions at finite temperatures by using the t-J model, a canonical model of strongly-correlated electro…
Antiferromagnetic Order and Bose-Einstein Condensation in Strongly-Correlated Cold-Atom Systems: Bosonic t-J Model in the Double-CP^1 Representation
Yuki Nakano, Takumi Ishima, Naohiro Kobayashi +3
We study the three-dimensional bosonic t-J model, i.e., the t-J model of "bosonic electrons" at finite temperatures. This model describes a system of cold bosonic atoms with two sp…
Effective field theory for Sp(N) antiferromagnets and its phase structure
Keisuke Kataoka, Shinya Hattori, Ikuo Ichinose
In this paper, we study quantum Sp(N) antiferromagnetic (AF) Heisenberg models in two dimensions (2D) by using the Schwinger-boson representation and the path-integral methods. An…