Applicability of semiclassical methods for modeling laser-enhanced fusion rates in a realistic setting
Applicability of semiclassical methods for modeling laser-enhanced fusion rates in a realistic setting
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DOI：
10.1103/physrevc.105.054001
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发表时间：
2022-05
影响因子：
3.1
通讯作者：
J. J. Bekx-J.;M. L. Lindsey;Siegfried Glenzer;Karl-Georg Schlesinger
中科院分区：
文献类型：
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作者：
J. J. Bekx-J.;M. L. Lindsey;Siegfried Glenzer;Karl-Georg Schlesinger
在潜在的激光诱导增强和DT聚变速率的背景下，我们讨论了常用的Wentzel-Kramers-Brillouin （WKB）方法和虚时间方法（ITM）。对于静态外电场，我们发现这些方法预测了电场强度（v /m）显著增强的聚变截面，特别是在低值（keV）的质量进入（CoM）能量。当考虑动态电场时，这种增强可以通过考虑增加光子频率来放大。然而，我们也对这些半经典方法适用的激光参数相空间区域进行了综述。我们得出结论，光子频率越高，电场强度越低，这个允许区域就越小，这促使我们需要未来的实验来测试这些方法的预测及其有效性范围。
In the context of the potential laser-induced enhancement to the rates ofand DT fusion, we discuss the frequently-used Wentzel-Kramers-Brillouin (WKB) method and the imaginary-time method (ITM). For static external electric fields, we find that these methods predict significant enhancement to the fusion cross section for electric-field strengthsV/m, especially at low values (keV) for the enter-of-mass (CoM) energy. When considering dynamic electric fields, this enhancement can be amplified by considering increased photon frequencies. However, we also provide a review of the region of laser-parameter phase space where these semiclassical methods are applicable. We conclude that this allowable region decreases for higher photon frequencies in conjunction with lower values for the electric-field strength, motivating the need for future experiments to test the predictions of these methods and their ranges of validity.