Bulanov Sergei V, Esirkepov Timur Zh, Kando Masaki, Koga James K, Bulanov Stepan S
Kansai Photon Science Institute, JAEA, Kizugawa, Kyoto, Japan.
Phys Rev E Stat Nonlin Soft Matter Phys. 2011 Nov;84(5 Pt 2):056605. doi: 10.1103/PhysRevE.84.056605. Epub 2011 Nov 11.
When the parameters of electron-extreme power laser interaction enter the regime of dominated radiation reaction, the electron dynamics changes qualitatively. The adequate theoretical description of this regime becomes crucially important with the use of the radiation friction force either in the Lorentz-Abraham-Dirac form, which possesses unphysical runaway solutions, or in the Landau-Lifshitz form, which is a perturbation valid for relatively low electromagnetic wave amplitude. The goal of the present paper is to find the limits of the Landau-Lifshitz radiation force applicability in terms of the electromagnetic wave amplitude and frequency. For this, a class of the exact solutions to the nonlinear problems of charged particle motion in the time-varying electromagnetic field is used.
当电子与超强激光相互作用的参数进入辐射反作用主导的区域时，电子动力学性质会发生变化。对于该区域，无论是采用具有非物理逃逸解的洛伦兹 - 亚伯拉罕 - 狄拉克形式的辐射摩擦力，还是采用适用于相对低电磁波振幅的微扰形式的朗道 - 栗弗席兹形式，对其进行充分的理论描述都变得至关重要。本文的目的是根据电磁波的振幅和频率来确定朗道 - 栗弗席兹辐射力适用性的界限。为此，使用了一类时变电磁场中带电粒子运动非线性问题的精确解。
