16 papers
Thermal Signatures of the Slater-Mott Crossover in the Hubbard Model: From Double Occupancy to Antiferromagnetic Correlation Length
Mingzhong Lu, Yu-Feng Song, Youjin Deng +1
The interaction-driven crossover from a Slater insulator to a Mott insulator in the Néel-ordered ground state of the Hubbard model is a fundamental paradigm of strongly correlated…
Quantum Monte Carlo study of the metal-insulator crossover in the square-lattice Hubbard model
Mingzhong Lu, Yu-Feng Song, Youjin Deng +1
The interaction-driven evolution from a Fermi liquid to a Mott insulator is a hallmark of strongly correlated fermion systems. In this work, we present a {\it numerically unbiased}…
Spontaneous Symmetry Breaking in Two-dimensional Long-range Heisenberg Model
Tianning Xiao, Dingyun Yao, Lode Polle +2
Algebraically decaying interactions can lead to nontrivial universality beyond short-range (SR) theories and spontaneous symmetry breaking in low-dimensional syst…
Crossover Scaling of Binder Cumulant and its application in Non-reciprocal Sandpiles
Wei Zhong, Youjin Deng
In this letter, we unveil a robust, pre-asymptotic scaling regime for the Binder cumulant , a central finite-size scaling tool, demonstrating (diso…
Scaling of Long-Range Loop-Erased Random Walks
Tianning Xiao, Xianzhi Pan, Zhijie Fan +1
We study the scaling properties of long-range loop-erased random walks (LR-LERW), where the underlying random walker performs Lévy-flight-like jumps with a power-law step-length d…
Computation of thermal entropy for the doped Hubbard Model
Yu-Feng Song, Youjin Deng, Yuan-Yao He
We develop a highly efficient framework for computing the thermal entropy in the doped Fermi-Hubbard model within the grand-canonical ensemble. The framework comprises four calcula…