10 papers
Robust spin pseudogap and spin-charge separation in the - model
Zheng-Yuan Yue, Jia-Xin Zhang, Zheng-Cheng Gu
The - model, obtained from the usual - model by flipping the sign of the spin-down hopping term, has been proposed to eliminate the strong interference between doped h…
Momentum-Selective Two-Component Excitations in Electron-Doped Mott Insulators
Zeyu Han, Can Cui, Jia-Xin Zhang +1
Experimental studies reveal a striking asymmetry in low-energy single-particle excitations between electron- and hole-doped cuprates. Electron-doped cuprates display a nontrivial d…
Competing and Intertwined Orders in Boson-Doped Mott Antiferromagnets
Xin Lu, Jia-Xin Zhang, Lukas Homeier +3
Inspired by the recent experimental advances in cold atom quantum simulators, we explore the experimentally implemented bosonic -- model on the square lattice using large…
Intrinsic phase fluctuation and superfluid density in doped Mott insulators
Zeyu Han, Zhi-Jian Song, Jia-Xin Zhang +1
The doping dependence of the superfluid density exhibits distinct behaviors in the underdoping and overdoping regimes of the cuprate, while the superconducting (SC)…
Quantum-interference-induced pairing in bosonic doped antiferromagnets
Hao-Kai Zhang, Jia-Xin Zhang, Ji-Si Xu +2
The pairing mechanism in doped antiferromagnets is essential for understanding high-temperature superconductivity. In this work, we investigate the pairing mechanism in bosonic dop…
Electric transport in doped Mott insulators dictated by a non-Ioffe-Larkin composition rule and spinons
Chuan Chen, Jia-Xin Zhang, Zhi-Jian Song +1
The electric resistivity is examined in the constrained Hilbert space of a doped Mott insulator, which is dictated by a non-Ioffe-Larkin composition rule due to the underlying mutu…