Zobrazeno 1 - 10
of 410
pro vyhledávání: '"Sheng Zheng-Ming"'
Relativistic polarized electron beams can find applications in broad areas of fundamental physics. Here, we propose for the first time that electron spin polarization can be realized efficiently via collective beam-target interactions. When a relativ
Externí odkaz:
http://arxiv.org/abs/2408.05768
Autor:
Song, Huai-Hang, Sheng, Zheng-Ming
In the ultraintense laser-solid interaction, our recent work [Phys. Rev. E 109, 035204 (2024)] has revealed that the linear Breit-Wheeler (BW) process via photon-photon collisions will become the dominant mechanism for electron-positron pair producti
Externí odkaz:
http://arxiv.org/abs/2405.04140
Publikováno v:
Phys. Rev. E 109, 035204 (2024)
During the ultraintense laser interaction with solids (overdense plasmas), the competition between two possible quantum electrodynamics (QED) mechanisms responsible for $e^\pm$ pair production, i.e., linear and nonlinear Breit-Wheeler (BW) processes,
Externí odkaz:
http://arxiv.org/abs/2312.10731
Autor:
Zhu, Xing-Long, Liu, Wei-Yuan, Yu, Tong-Pu, Chen, Min, Weng, Su-Ming, Wang, Wei-Min, Sheng, Zheng-Ming
Relativistic positron sources with high spin polarization have important applications in nuclear and particle physics and many frontier fields. However, it is challenging to produce dense polarized positrons. Here we present a simple and effective me
Externí odkaz:
http://arxiv.org/abs/2311.12297
Publikováno v:
Communications in Computational Physics, 32 (2022), pp. 583-594
To include the bound electron effects in particle-in-cell (PIC) simulation, we propose a model in which the response of the dipole components of partially ionized ions to external electromagnetic fields can be included. Instead of treating the macro-
Externí odkaz:
http://arxiv.org/abs/2208.08038
Autor:
Liu, Wei-Yuan, Zhu, Xing-Long, Chen, Min, Weng, Su-Ming, He, Feng, Sheng, Zheng-Ming, Zhang, Jie
Relativistic laser wakefield acceleration is characterized by an unsurpassed accelerating gradient, which is very suitable for electron acceleration over short distances and could be a promising candidate for next-generation compact accelerators. How
Externí odkaz:
http://arxiv.org/abs/2207.14749
Autor:
Zhu, Xing-Long, Liu, Wei-Yuan, Chen, Min, Weng, Su-Ming, McKenna, Paul, Sheng, Zheng-Ming, Zhang, Jie
Laser-driven ion acceleration is an attractive technique for compact high-energy ion sources. Currently, among various physical and technical issues to be solved, the boost of ion energy and the reduction of energy spread represent the key challenges
Externí odkaz:
http://arxiv.org/abs/2207.07854
Autor:
Song, Huai-Hang, Wang, Wei-Min, Li, Yan-Fei, Li, Bing-Jun, Li, Yu-Tong, Sheng, Zheng-Ming, Chen, Li-Ming, Zhang, Jie
Publikováno v:
New J. Phys. 23, 075005 (2021)
The spin effect of electrons/positrons ($e^-$/$e^+$) and polarization effect of $\gamma$ photons are investigated in the interaction of two counter-propagating linearly polarized 10-PW-class laser pulses with a thin foil target. The processes of nonl
Externí odkaz:
http://arxiv.org/abs/2102.05882
Autor:
Liu, Wei-Yuan, Xue, Kun, Wan, Feng, Chen, Min, Li, Jian-Xing, Liu, Feng, Weng, Su-Ming, Sheng, Zheng-Ming, Zhang, Jie
Energetic spin-polarized positrons are extremely demanded for forefront researches, such as $e^- e^+$ collider physics, but making compact positron sources is still very challenging. Here we put forward an efficient scheme of trapping and acceleratio
Externí odkaz:
http://arxiv.org/abs/2011.00156
Publikováno v:
Phys. Rev. E 101, 011201 (2020)
The upcoming $10-100$ petawatt laser facilities may deliver laser pulses with unprecedented intensity of $10^{22}-10^{25}\rm~W cm^{-2}$, which can trigger various nonlinear quantum electrodynamic processes in plasma. For effective laser plasma intera
Externí odkaz:
http://arxiv.org/abs/1910.01035