Journal article

Publication year: 1999

Pages: 9710-9713

Journal: Physical Review B

Volume number: 59

Issue number: 15

ISSN: 2469-9950

eISSN: 2469-9969

Open access status: Green

DOI Link: https://doi.org/10.1103/PhysRevB.59.9710

Publisher: American Physical Society

Abstract: 
Based on an equation of motion approach the single-impurity Anderson model is reexamined. Using the cluster expansions the equations of motion of Green functions are transformed into the corresponding equations of motion of connected Green functions, which provides a natural and uniform truncation scheme. A factor of 2 missing in the Lacroix's approximation for the Kondo temperature is gained in the next higher-order truncation beyond Lacroix's. A quantitative improvement in the density of states at the Fermi level is also obtained. [S0163-1829(99)08015-7].

Harvard Citation style: Luo, H., Ying, J. and Wang, S. (1999) Equation of motion approach to the solution of the Anderson model, Physical Review B, 59(15), pp. 9710-9713. https://doi.org/10.1103/PhysRevB.59.9710

APA Citation style: Luo, H., Ying, J., & Wang, S. (1999). Equation of motion approach to the solution of the Anderson model. Physical Review B. 59(15), 9710-9713. https://doi.org/10.1103/PhysRevB.59.9710