Gauss quadrature based finite temperature Lanczos method
نویسندگان
چکیده
The finite temperature Lanczos method (FTLM), which is an exact diagonalization intensively used in quantum many-body calculations, formulated the framework of orthogonal polynomials and Gauss quadrature. main idea to reduce static dynamic quantities into weighted summations related one- two-dimensional quadratures. Then lower order quadrature, generated from iteration, can be applied approximate initial summation. This fills conceptual gap between FTLM kernel polynomial method, makes it easy apply techniques calculation.
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ژورنال
عنوان ژورنال: Chinese Physics B
سال: 2022
ISSN: ['2058-3834', '1674-1056']
DOI: https://doi.org/10.1088/1674-1056/ac5986