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Manuscript Title: Numerical simulation code for self-gravitating Bose-Einstein condensates | ||

Authors: Eniko J. M. Madarassy, Viktor T. Toth | ||

Program title: bec3p | ||

Catalogue identifier: AEOR_v1_0Distribution format: tar.gz | ||

Journal reference: Comput. Phys. Commun. 184(2013)1339 | ||

Programming language: C++ or FORTRAN. | ||

Computer: PCs or workstations. | ||

Operating system: Linux or Windows. | ||

Keywords: Gravity, Poisson's equation, Gross-Pitaevskii equation, Dark matter, Galaxy rotation. | ||

Classification: 1.5. | ||

Nature of problem:Simulation of a self-gravitating Bose-Einstein condensate by simultaneous solution of the Gross-Pitaevskii and Poisson equations in three dimensions. | ||

Solution method:The Gross-Pitaevskii equation is solved numerically using the Crank-Nicholson method; Poisson's equation is solved using the relaxation method. The time evolution of the system is governed by the Gross-Pitaevskii equation; the solution of Poisson's equation at each time step is used as an initial estimate for the next time step, which dramatically increases the efficiency of the relaxation method. | ||

Running time:Depends on the chosen size of the problem. On a typical personal computer, a 100 × 100 × 100 grid can be solved with a time span of 10 Gyr in approx. a day of running time. |

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