6 citations · 15 across the 4 of their papers we have counts for
4 papers
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…
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…
Covariant Bethe-Salpeter approximation in strongly correlated electron systems model
Zhenhao Fan, Zhipeng Sun, Dingping Li +3
Strongly correlated electron systems are generally described by tight binding lattice Hamiltonians with strong local (on site) interactions, the most popular being the Hubbard mode…