圆偏振强激光场下等离子体动力学方程及输运

KINETIC EQUATION AND TRANSPORTS OF PLASMA IN A CIRCULARL Y-POLARIZED INTENSE LASER FIELD

将Ｆｏｋｋｅｒ－Ｐｌａｎｃｋ方程转换到电子在激光场中振荡的坐标中，得到了光场作用下的电子动力学方程；给出了圆偏振激光场作用下的电子－离子、电子－电子碰撞项；在不同的场强区域讨论了等离子体热电输运．研究表明，当电子在激光场的颤动速度接近或者大于其热运动速度时，与没有激光场情况相比，等离子体的热电输运减小很多．

The kinetic equation for electron in an intense laser field is derived by transio-rming the Fokker-Planck equation into the local coordinate system of electron osci-llation in the field.The electron-ion collision in circularly-polarized light is calcu-lated,and the electron-electron collision is discussed.The plasma thermo-electrictransports are studied for different intensity regions of the circularly-polarized laserfield.It is found that,when the electron quivervelocity in laser field is comparablewith its thermal velocity,the thermo-electric transports can be largely decreaseu ascompared to the case without laser field.