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- W3099244052 endingPage "095602" @default.
- W3099244052 startingPage "095602" @default.
- W3099244052 abstract "We study the single impurity Anderson model (SIAM) using the equations of motion method (EOM), the non-crossing approximation (NCA), the one-crossing approximation (OCA), and Wilson's numerical renormalization group (NRG). We calculate the density of states and the linear conductance focusing on their dependence on the chemical potential and on the temperature paying special attention to the Kondo and Coulomb blockade regimes for a large range of model parameters. We report that some standard approximations based on the EOM technique display a rather unexpected poor behavior in the Coulomb blockade regime even at high temperatures. Our study offers a critical comparison between the different methods as well as a detailed compilation of the shortcomings and limitations due the approximations involved in each technique, thus allowing for a cost-benefit analysis of the different solvers that considers both numerical precision and computational performance." @default.
- W3099244052 created "2020-11-23" @default.
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- W3099244052 date "2019-12-02" @default.
- W3099244052 modified "2023-10-15" @default.
- W3099244052 title "Quantitative comparison of Anderson impurity solvers applied to transport in quantum dots" @default.
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- W3099244052 doi "https://doi.org/10.1088/1361-648x/ab5773" @default.
- W3099244052 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31722324" @default.
- W3099244052 hasPublicationYear "2019" @default.
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