Simbuca, using a graphics card to simulate Coulomb interactions in a penning trap

0365527 - ÚJF 2013 RIV NL eng J - Článek v odborném periodiku
Van Gorp, S. - Beck, M. - Breitenfeldt, M. - De Leebeeck, V. - Friedag, P. - Zákoucký, Dalibor … celkem 17 autorů
Simbuca, using a graphics card to simulate Coulomb interactions in a penning trap.
Nuclear Instruments & Methods in Physics Research Section A. Roč. 638, č. 1 (2011), s. 192-200. ISSN 0168-9002. E-ISSN 1872-9576
Výzkumný záměr: CEZ:AV0Z10480505
Klíčová slova: Penning trap * Simulation * Ion cloud
Kód oboru RIV: CH - Jaderná a kvantová chemie, fotochemie
Impakt faktor: 1.207, rok: 2011

In almost all cases, N-body simulations are limited by the computation time available. Coulomb interaction calculations scale with O(N(2)) with N the number of particles. Approximation methods exist already to reduce the computation time to O(NlogN) although calculating the interaction still dominates the total simulation time. We present Simbuca, a simulation package for thousands of ions moving in a Penning trap which will be applied for the WITCH experiment. Simbuca uses the output of the Cunbody-1 library, which calculates the gravitational interaction between entities on a graphics card, and adapts it for Coulomb calculations.
Trvalý link: http://hdl.handle.net/11104/0200754