207 citations · 943 across the 55 of their papers we have counts for
55 papers
Determination of dynamical quantum phase transition for boson systems using the Loschmidt cumulants method
Pengju Zhao, Jingxin Sun, Shengjie Jin +4
We study the dynamical quantum phase transition(DQPT) of the Bose-Hubbard model utilizing recently developed Loschmidt cumulants method. We determine the complex Loschmidt zeros of…
Linear Response Functions Respecting Ward-Takahashi Identity and Fluctuation-Dissipation Theorem within Approximation
Hui Li, Zhipeng Sun, Yingze Su +3
The calculation of response functions in correlated electronic systems is one of the most important problems in the condensed matter physics. To obtain a physical response function…
Unified intermediate coupling description of the pseudogap and the strange metal phases of cuprates
Hsien-chung Kao, Dingping Li, Baruch Rosenstein
A one band Hubbard model with intermediate coupling is shown to describe the two most important unusual features of a normal state: linear resistivity strange metal and the pseudog…
Simulation of classical Ising-like magnetism with a Mott insulator of paired atoms
Ren Liao, Jingxin Sun, Hui Li +8
Quantum simulation of the XXZ model with a two-component Bose or Fermi Hubbard model based on a Mott insulator background has been widely used in the investigations of quantum magn…
Field theoretical approach to spin models
Feng Liu, Zhenhao Fan, Zhipeng Sun +2
We developed a systematic non-perturbative method base on Dyson-Schwinger theory and the -derivable theory for Ising model at broken phase. Based on these methods, we obtain cri…
Modified Method in Electronic Systems
Zhipeng Sun, Zhenhao Fan, Hui Li +2
A modified approximation to many - body systems is developed. The approximation has the same computational complexity as the traditional approach, but uses a different tr…