Higher fidelity simulations of nonlinear Breit–Wheeler pair creation in intense laser pulses
Higher fidelity simulations of nonlinear Breit–Wheeler pair creation in intense laser pulses
复制标题
强激光脉冲中非线性 Breit-Wheeler 对生成的更高保真度模拟
DOI:
10.1140/epjc/s10052-021-09955-3
复制
发表时间:
2021
期刊:
影响因子:
--
通讯作者:
B. King
中科院分区:
文献类型:
--
作者:
T. Blackburn;B. King
When a photon collides with a laser pulse, an electron-positron pair can be produced via the nonlinear Breit–Wheeler process. A simulation framework has been developed to calculate this process, which is based on a ponderomotive approach that includes strong-field quantum electrodynamical effects via the locally monochromatic approximation (LMA). Here we compare simulation predictions for a variety of observables, in different physical regimes, with numerical evaluation of exact analytical results from theory. For the case of a focussed laser background, we also compare simulation with a high-energy theory approximation. These comparisons are used to quantify the accuracy of the simulation approach in calculating harmonic structure, which appears in the lightfront momentum and angular spectra of outgoing particles, and the transition from multi-photon to all-order pair creation. Calculation of the total yield of pairs over a range of intensity parameters is also used to assess the accuracy of the locally constant field approximation (LCFA).
影响因子:
3.3
作者:
T. Blackburn;A. Ilderton;M. Marklund;Christopher Ridgers
通讯作者:
T. Blackburn;A. Ilderton;M. Marklund;Christopher Ridgers
DOI:
--
发表时间:
2018
期刊:
ArXiv e-prints
影响因子:
--
作者:
Dillon Barry M.
通讯作者:
Dillon Barry M.
影响因子:
4.1
作者:
Ridgers, C. P.;Kirk, J. G.;Bell, A. R.
通讯作者:
Bell, A. R.