Considering the limiting weak nonlinearity, we obtained the solution of the coupled equations describing the interaction of ultraintense laser with cold transparent multicomponent plasma. It was indicated that the ion...Considering the limiting weak nonlinearity, we obtained the solution of the coupled equations describing the interaction of ultraintense laser with cold transparent multicomponent plasma. It was indicated that the ions tend to accumulate at the center of the soliton and have large velocity when we consider the mobile ions in the multicomponent plasma, which shows that the result is different from that of the Berezhiani＇s analysis. The change of proportion of ions in the plasma has effects on the amplitude of vector potential and the maximum velocity of the soliton.展开更多
By using a standard multiple scale method, a Davey-Stewartson （DS） equation has been derived and also applied to a multi-dimensional analytical investigation on the interaction of an ultra-intense laser pulse with a...By using a standard multiple scale method, a Davey-Stewartson （DS） equation has been derived and also applied to a multi-dimensional analytical investigation on the interaction of an ultra-intense laser pulse with a cold unmagnetized transparent electron-ion plasma. The regions of instability are found by considering the modulation instability of a plane wave solution of the DS equation. The DS equation is just of the Davey Stewartson 1 （DS1） type and admits a dromion solution, i.e. a two-dimensional （2D） dromion soliton decaying exponentially in all spatial directions. A 2D relativistic electromagnetic dromion-like soliton （2D REDLS） is derived for a vector potential.展开更多
Ball lightning is widely concerning because it is hard to detect,predict,and reproduce.The dependences of electromagnetic(EM)solitons,which are considered expectant ball lightning,forming at the wavelength of the inci...Ball lightning is widely concerning because it is hard to detect,predict,and reproduce.The dependences of electromagnetic(EM)solitons,which are considered expectant ball lightning,forming at the wavelength of the incident light are investigated with two-dimensional particle-in-cell simulations.It shows that both the long wavelength microwave and the short wavelength laser are not suitable for producing the observed ball-lightning-like EM solitons.A strong field terahertz wave is proposed to inject and generate EM solitons.This paper can provide some references for researchers studying ball lightning.展开更多
文摘Considering the limiting weak nonlinearity, we obtained the solution of the coupled equations describing the interaction of ultraintense laser with cold transparent multicomponent plasma. It was indicated that the ions tend to accumulate at the center of the soliton and have large velocity when we consider the mobile ions in the multicomponent plasma, which shows that the result is different from that of the Berezhiani＇s analysis. The change of proportion of ions in the plasma has effects on the amplitude of vector potential and the maximum velocity of the soliton.
文摘By using a standard multiple scale method, a Davey-Stewartson （DS） equation has been derived and also applied to a multi-dimensional analytical investigation on the interaction of an ultra-intense laser pulse with a cold unmagnetized transparent electron-ion plasma. The regions of instability are found by considering the modulation instability of a plane wave solution of the DS equation. The DS equation is just of the Davey Stewartson 1 （DS1） type and admits a dromion solution, i.e. a two-dimensional （2D） dromion soliton decaying exponentially in all spatial directions. A 2D relativistic electromagnetic dromion-like soliton （2D REDLS） is derived for a vector potential.
基金supported by the National Natural Science Foundation of China(Nos.11874372 and 11922412)the Shanghai Rising-Star Program and Shanghai Foundation(No.2019-jmrh1-kj1)+1 种基金the Strategic Priority Research Program(B)(No.XDB16)the Youth Innovation Promotion Association CAS,and the Key Research Program of Frontier Sciences,CAS(No.ZDBS-LY-SLH018)。
文摘Ball lightning is widely concerning because it is hard to detect,predict,and reproduce.The dependences of electromagnetic(EM)solitons,which are considered expectant ball lightning,forming at the wavelength of the incident light are investigated with two-dimensional particle-in-cell simulations.It shows that both the long wavelength microwave and the short wavelength laser are not suitable for producing the observed ball-lightning-like EM solitons.A strong field terahertz wave is proposed to inject and generate EM solitons.This paper can provide some references for researchers studying ball lightning.
