【摘 要】
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Strongly correlated electron system(SCS)possesses various intriguing many-body phenomena,such as metal-insulator transition,which is difficult for classic band theory and model methods [1].The develop
【机 构】
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Hefei National Laboratory for Physical Sciences at the Microscale,University of Science and Technolo
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Strongly correlated electron system(SCS)possesses various intriguing many-body phenomena,such as metal-insulator transition,which is difficult for classic band theory and model methods [1].The development and application of dynamical mean-field theory(DMFT)[2] leads to a dramatic progress in the understanding of SCS,whose accuracy and efficiency relies on the impurity solver.Although the existing impurity solvers,such as the numerical renormalization group(NRG)method [3],have been successfully used in characterizing the fundamental characteristics of SCS,they have their own limitations.
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