Quantitative Determination of the Critical Points of Mott Metal-Insulator Transition in Strongly Correlated Systems
arXiv:2112.04661 · doi:10.1088/1674-1056/ad0719
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.
6 pages, 4 figures
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