沟道辐射与激光辐射源的地位
On the status of channeling radiation and laser based radiation sources
AI总结：
本文用两个洛伦兹不变量统一描述定向晶体沟道辐射与激光辐射源，揭示二者关键差异，并指出定向晶体可研究强非均匀场中的QED过程。
摘要：
本文提出了一种统一描述定向晶体（OC）中沟道辐射（CR）与强平面波场（激光辐射源，LRS）中辐射的方法，该方法基于两个洛伦兹不变量参数。详细研究了平面正电子沟道（准沟道）和线偏振激光波的情况，能量高达太电子伏特（TeV）。LRS与CR之间的关键区别在于，在前者中，两个不变量是相互独立的，而在沟道中，它们彼此线性相关。这导致在定向晶体中这些不变量的可能取值范围受到强烈限制。另一方面，定向晶体使得研究强非均匀外场中的量子电动力学（QED）过程成为可能。
英文摘要：
A unified description of channeling radiation (CR) in oriented crystals (OC) and radiation in the field of an intense plane wave (laser radiation sources - LRS) is proposed in terms of two Lorentz-invariant parameters. The case of planar positron channeling (quasi-channeling) and linearly polarized laser wave is considered in detail up to TeV energies. The crucial difference between LRS and CR is that in the former case both invariants are independent, while in channeling they are linearly related to each other. This leads to a strong limitation on the range of possible values of these invariants in OC. On the other hand, OC make it possible to study QED processes in strong non-uniform external fields.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
