Tree Code for Collision Detection of Large Numbers of Particles Application for the Breit-Wheeler Process [CL]

http://arxiv.org/abs/1608.01125


Collision detection of a large number N of particles can be challenging. Directly testing N particles for collision among each other leads to N 2 queries. Especially in scenarios, where fast, densely packed particles interact, challenges arise for classical methods like Particle-in-Cell or Monte-Carlo. Modern collision detection methods utilising bounding volume hierarchies are suitable to overcome these challenges and allow a detailed analysis of the interaction of large number of particles. This approach is applied to the analysis of the collision of two photon beams leading to the creation of electron-positron pairs.

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O. Jansen, E. dHumieres, X. Ribeyre, et. al.
Thu, 4 Aug 16
38/70

Comments: Preprint version