66 research outputs found
Correlation functions for time-dependent calculation of linear-response functions
We emphasize the importance of choosing an appropriate correlation function
to reduce numerical errors in calculating the linear-response function as a
Fourier transformation of a time-dependent correlation function. As an example
we take dielectric functions of silicon crystal calculated with a
time-dependent method proposed by Iitaka et al. [Phys. Rev. E 56, 1222 (1997)].Comment: to be published in Phys.Rev.E 01 Dec 1997, 2 pages, 4 figures, more
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