Description of renormalization effect of multiband systems and its application within CMRA theory
ORAL
Abstract
Many interesting physical phenomena, especially those observed in strongly correlated systems, incur a multiband description. A relatively accurate description of these systems is very important to clarify the origin of the observed physics. The recently proposed correlated matrix renormalization approximation (CMRA) introduces a new route to address this problem. As a variational approach, it makes use of possible renormalizations on the density matrix to correctly absorb effects resulting from strong electron-electron interactions. It performs quite well on different H systems. However, the generalization to multiband cases can be nontrivial. In this talk, I will discuss about how renormalization effects can be incorporated into the density matrix in the multiband case, and show the performance of the resulting CMRA on different dimer systems.
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Authors
J. Liu
Iowa State University
Ames Laboratory and Iowa State University
Y.X. Yao
Iowa State University
Ames Laboratory and Iowa State University
C. Liu
Iowa State University
Ames Laboratory and Iowa State University
W.C. Lu
Iowa State University
Jilin University and Qingdao University
Cai-Zhuang Wang
Iowa State University
Ames Laboratory, US DOE and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
Ames Laboratory and Iowa State University
Ames Laboratory
Ames Laboratory-US Department of Energy, and Department of Physics and Astronomy, Iowa State University, Ames, Iowa, 50011, USA
Kai-Ming Ho
Iowa State University
Ames Laboratory, US DOE and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
Ames Laboratory and Iowa State University
Ames Laboratory
Ames Laboratory-US Department of Energy, and Department of Physics and Astronomy, Iowa State University, Ames, Iowa, 50011, USA
