本项目将针对轨道电子关联体系发展一套的隶玻色子技术，并将其应用到包括铁基超导体、过渡金属化合物、低维自旋阻挫系统和重费米子金属等强关联体系的前沿研究领域。密切关注这些强关联体系的实验进展，着重考虑多轨道系统中电子关联的新型式，系统地研究多轨道自由度与电荷、自旋和晶格等自由度的耦合效应。希望通过新的量子多体理论技术的发展，促进多轨道电子关联体系新奇量子效应的前沿研究，产生一批具有国际影响的研究成果。同时，培养2-4名高质量的研究生。

The goal of this project is to develop a new slave-boson technique for multiorbital electron correlated systems, and to apply this new method to various multiorbital systems, including iron-based superconductors, transition metal compounds, low-dimensional spin frustrated systems, and heavy fermion metals. The research will be closely connected to the experimental advances in these syetems, and will be focused on the new features of the correlation effects in multiorbital systems and the effects induced by the coupling between the multiple orbitals, charge, spin, and lattice degrees of freedom. We hope the development in the new quantum many-body technique will benefit the study in multiorbital electron correlated systems. We also hope that our research generates international impact. In the meantime, we will train two to four graduate students through this project.