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Phys. Rev. E 56, 7318 - 7319 (1997)

Correlation functions for a time-dependent calculation of linear-response functions
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Toshiaki Iitaka
Nanoelectronics Materials Group, Frontier Research Program, RIKEN, Hirosawa 2-1, Wako, Saitama 351-01, Japan

Received 19 August 1997

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)].


©1997 The American Physical Society

URL: http://link.aps.org/abstract/PRE/v56/p7318
DOI: 10.1103/PhysRevE.56.7318
PACS: 02.70.-c, 71.10.Fd, 85.30.Vw, 72.15.-v

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