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arXiv physics/9710034physics.plasm-phchao-dynnlin.CD
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波粒自洽相互作用N体描述的动力学极限

Kinetic limit of N-body description of wave-particle self- consistent interaction

M. C. Firpo, Y. Elskens

摘要:

N个粒子的系统eN=(x1,v1,...,xN,vN)与M波Zn=An*exp(iTn)自洽相互作用。哈密顿动力学将初始数据(eN(0),Zn(0))传输到(eN(t),Zn(t))。在无限数量的粒子的限制下,为分布函数f(x,v,t)生成Vlasov样动力学方程,耦合到M波的包络方程。具有有限能量的任何初始数据(f(0),Z(0))被传输到唯一的(f(t),Z(t))。此外,对于任何时间T>0,给定具有N个粒子分布的初始数据序列,使得粒子分布fN(0)-->f(O)弱,并且当N趋于无穷大时,Zn(0)-->Z(O),由Hamilton动力学生成的状态在所有时间0<t<T是这样的:(eN(t),Zn(t))弱收敛到(f(t),Z(t))。说明:动力学理论,等离子体物理。

英文摘要:

A system of N particles eN=(x1,v1,...,xN,vN) interacting self-consistently with M waves Zn=An*exp(iTn) is considered. Hamiltonian dynamics transports initial data (eN(0),Zn(0)) to (eN(t),Zn(t)). In the limit of an infinite number of particles, a Vlasov-like kinetic equation is generated for the distribution function f(x,v,t), coupled to envelope equations for the M waves. Any initial data (f(0),Z(0)) with finite energy is transported to a unique (f(t),Z(t)). Moreover, for any time T>0, given a sequence of initial data with N particles distributed so that the particle distribution fN(0)-->f(O) weakly and with Zn(0)-->Z(O) as N tends to infinity, the states generated by the Hamiltonian dynamics at all time 0<t<T are such that (eN(t),Zn(t)) converges weakly to (f(t),Z(t)). Comments: Kinetic theory, Plasma physics.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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