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arXiv · 2112.04661

Quantitative Determination of the Critical Points of Mott Metal-Insulator Transition in Strongly Correlated Systems

Yuekun Niu·Yu Ni·Jianli Wang·Leiming Chen·Ye Xing·Yun Song·Shiping Feng
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Abstract

Mottness is at the heart of the essential physics in a strongly correlated system as many novel quantum phenomena occur in the metallic phase near the Mott metal-insulator transition. We investigate the Mott transition in a Hubbard model by using the dynamical mean-field theory and introduce the local quantum state fidelity to depict the Mott metal-insulator transition. The local quantum state fidelity provides a convenient approach for determining the critical point of the Mott transition. Additionally, it presents a consistent description of the two distinct forms of the Mott transition points.

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Yuekun Niu, Yu Ni, Jianli Wang, Leiming Chen, Ye Xing, Yun Song, Shiping Feng. 2021-12-09. Quantitative Determination of the Critical Points of Mott Metal-Insulator Transition in Strongly Correlated Systems. https://doi.org/10.1088/1674-1056%2Fad0719

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