Quantitative determination of the critical points of Mott metal-insulator transition in strongly correlated systems

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外文摘要：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 to determining the critical point of the Mott transition.Additionally,it presents a consistent description of the two distinct forms of the Mott transition points.

外文关键词：

critical pointmetal-insulator transitionlocal quantum state fidelitystrongly correlated systemquasiparticle coherent weight

作者：

牛月坤、倪煜、王建利、陈雷鸣、邢晔、宋筠、冯世平

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作者单位：

School of Physical Science and Technology,Inner Mongolia University,Hohhot 010021,China

College of Physics and Electronic Information,Yunnan Normal University,Kunming 650500,China

School of Materials Science and Physics,China University of Mining and Technology,Xuzhou 221116,China

Department of Physics,Beijing Normal University,Beijing 100875,China

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基金：

Scientific Research Foundation for Youth Academic Talent of Inner Mongolia UniversityFundamental Research Funds for the Central Universities of ChinaNational Natural Science Foundation of ChinaNational Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of China

项目编号：

10000-23112101/010JN200208114740232021YFA14018031197405111734002

出版年：

2024

DOI：

10.1088/1674-1056/ad0719

中国物理B(英文版)

中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI

影响因子：0.995

ISSN：1674-1056

年,卷(期)：2024.33(1)

参考文献量52