4 papers
Exact Nagaoka-to-spiral transition in the doped infinite-U triangular lattice
Yang Zhang, Cristian D. Batista
We study the single-hole infinite- Hubbard model on the triangular lattice with nearest- and next-nearest-neighbor hoppings and . A frustrating destabilizes Nag…
Magnon-Mediated Superconductivity in the Infinite- Triangular Lattice
Hantian Zhu, Yixin Zhang, Shang-Shun Zhang +2
We demonstrate that the infinite- triangular-lattice Hubbard model supports a superconducting state built from tightly bound Cooper pairs composed of two holes and one magnon ($…
Antiferromagnetism and Tightly Bound Cooper Pairs Induced by Kinetic Frustration
Yixin Zhang, Cristian Batista, Yang Zhang
Antiferromagnetism and superconductivity are often viewed as competing orders in correlated electron systems. Here, we demonstrate that kinetic frustration in hole motion facilitat…
Spatial Offset of Excited States in Non-Hermitian Lattices
Xiaohan Jiang, Yuanyuan Pan, Yang Zhang +1
We investigate the behavior of light-wave packets injected into non-Hermitian microcavity lattices under highly dissipative conditions. While all eigenstates of the lattice exhibit…