Strongly enhanced pair production in combined high- and low-frequency laser fields
Strongly enhanced pair production in combined high- and low-frequency laser fields
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DOI：
10.1103/physreva.88.052125
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发表时间：
2013-09
影响因子：
2.9
通讯作者：
Martin J. A. Jansen;C. Muller
中科院分区：
文献类型：
--
作者：
Martin J. A. Jansen;C. Muller
在非微扰相互作用下，研究了高能探测光子在强激光场中传播产生粒子-反粒子对的问题。激光场由一个强的低频分量和一个弱的高频分量组成。虽然对于每一个单独的组件的光生对强烈抑制，我们表明，它们的组合可以在很大程度上放大的对生产的概率，通过促进桥接的过程中的能量障碍。我们的预测可以通过利用现有的高强度激光设备进行测试。
Production of particle-antiparticle pairs by a high-energy probe photon propagating through a high-intensity laser field is considered in the nonperturbative interaction regime. The laser field consists of a strong low-frequency and a weak high-frequency component. While for each component alone photoproduction of pairs is strongly suppressed, we show that their combination can largely amplify the pair production probability by facilitating to bridge the energetic barrier of the process. Our predictions can be tested by utilizing presently available high-intensity laser devices.