Generation of Correlated and Constrained Gaussian Stochastic Processes for N-Body Simulations
Open Access
- 1 March 1996
- journal article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 460, 59
- https://doi.org/10.1086/176952
Abstract
A novel method of generating initial conditions for cosmological simulations based on the filteringof white noise is proposed. It is shown that it is possible to obtain any desired zero-mean GaussianStochastic Process (GSP) by applying an appropriate filter to a white noise (i.e., correlation-free) process.Since instances of white-noise processes are easy to generate in practice from standard random numbergenerators, it is therefore possible to create instances of arbitrary GSPs using only...Keywords
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