Noninvariance of space/time-scale ranges under a Lorentztransformation and the implications for the study of relativisticinteractions

Vay, Jean-Luc

Lawrence Berkeley National Laboratory

关键词: Acceleration;    Lorentz Transformations;    32;    Simulation;    Free Electron Lasers;   

DOI  :  10.2172/923015
RP-ID  :  LBNL--62321-Seminar
RP-ID  :  DE-AC02-05CH11231
RP-ID  :  923015

美国|英语

来源: UNT Digital Library

【 摘 要 】

The summary of this report is: (1) The range of scales {Lambda} of a system is not a Lorentz invariant and can vary greatly for some systems. (2) There exists an optimum frame which minimizes {Lambda}. (3) We demonstrated speedup of x1000 for PIC simulation of relativistic beam interacting with electron background. (4) It is not in contradiction with the conventional scientific wisdom that 'complexity' is an invariant. (5) We identified three domains of application (laser-plasma acceleration, e-cloud in HEP accelerators, free electron lasers) for which speedup ranging from 2 to 4 orders of magnitude were demonstrated on toy problems.