期刊
PHYSICAL REVIEW E
卷 88, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.88.063306
关键词
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资金
- DOE SciDAC grant [DE-FC02-10ER25916]
- BES CMCSN grant [DE-AC02-98CH10886]
- NSF EPSCoR [EPS-1003897]
- EPSCoR
- Office Of The Director [1003897] Funding Source: National Science Foundation
To reduce the rapidly growing computational cost of the dual-fermion lattice calculation with increasing system size, we introduce two embedding schemes. One is the real fermion embedding, and the other is the dual-fermion embedding. Our numerical tests show that the real fermion and dual-fermion embedding approaches converge to essentially the same result. The application on the Anderson disorder and Hubbard models shows that these embedding algorithms converge more quickly with system size as compared to the conventional dual-fermion method, for the calculation of both single-and two-particle quantities.
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