The concept of ponderomotive potential is upgraded to a regime in which radiation friction becomes dominant. The radiation friction manifests itself in novel features of long-term capturing of the particles released at the focus and impenetrability of the focus from the exterior. We apply time scales separation to the Landau-Lifshitz equation splitting the particle motion into quivering and slow drift of a guiding center. The drift equation is deduced by averaging over fast motion.
Coherently enhanced radiation friction in laser-plasma collisions
ELI Beamlines facility, The Extreme Light Infrastructure ERIC（极轻基础设施欧洲研究联盟 ELI 光束线设施）；National Research Nuclear University MEPhI（俄罗斯国家核研究医科大学 MEPhI）；Institute of Applied Physics of the Russian Academy of Sciences（俄罗斯科学院应用物理研究所）；Skolkovo Institute of Science and Technology（斯科尔科沃科学技术学院）；FNSPE, Czech Technical University in Prague（捷克布拉格理工大学 FNSPE）
Efficiency of radiation friction losses in laser-driven "hole boring" of dense targets
在极端强度的激光脉冲（$>10^{23}~{\rm W cm}^{-2}$）与高密度，厚等离子体目标的相互作用中，模拟显示出显着的辐射摩擦损失，与薄的目标，这种损失可以忽略不计。基于经典的辐射摩擦模型，对圆偏振脉冲与超临界初始密度的厚等离子体板相互作用时，激光能量向非相干辐射的转换效率进行了解析计算。通过考虑辐射损耗对单电子轨迹的影响、辐射压力作用下激光-等离子体相互作用区域的整体“打孔”运动以及激光场在纵向和横向的不均匀性，我们发现与三维粒子模拟的结果吻合得很好。总的来说，集体效应大大减少了真空中由相同激光脉冲驱动的电子的辐射损失，这也使经典计算的可靠性提高到更高的强度。
Analytical theory of coherent radiation and radiation friction in laser-plasma collisions
ELI Beamlines facility, The Extreme Light Infrastructure ERIC（极亮基础设施欧洲研究联合体 ELI光束线设施）；National Research Nuclear University MEPhI（莫斯科国立核研究大学 MEPhI）；Institute of Applied Physics of the Russian Academy of Sciences（俄罗斯科学院应用物理研究所）；Skolkovo Institute of Science and Technology（斯科尔科沃科学技术学院）；Deutsches Elektronen–Synchrotron DESY（德国电子同步加速器 DESY）；FNSPE, Czech Technical University in Prague（捷克布拉格理工大学 FNSPE）
Lorentz-Abraham-Dirac vs Landau-Lifshitz radiation friction force in the ultrarelativistic electron interaction with electromagnetic wave (exact solutions)
