期刊
FLUCTUATION AND NOISE LETTERS
卷 11, 期 4, 页码 -出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0219477512500265
关键词
Random potentials; spatial disorder
资金
- MICINN (Spain) [FIS2009-13360-C03]
- Generalitat de Catalunya [2009SGR14, 2009SGR878]
The study of transport and diffusion of Brownian particles in disorder media needs the generation of random potentials with well prescribed statistical properties. Here we present a straightforward method to build a Gaussian potential landscape with an arbitrary spatial correlation with the only requirement of isotropy. The method has the particularity that, although it uses the Fourier space, all its constraints and information are in real space. As practical applications we construct three types of Gaussian disordered correlations: Normal, exponential and power-law. These three cases cover a variety of physical situations.
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