发表机构
Center of Gravity, Niels Bohr Institute; Physik-Institut, University of Zürich（重力中心，尼尔斯·玻尔研究所; 物理学院，苏黎世大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文揭示切连科夫暴源于端点加速度产生的成对电磁记忆台阶的干涉，并指出阿斯凯良效应可成为观测宏观记忆跃迁的新实验平台。
AI 中文摘要
我们证明，有限超光速电荷轨迹产生的常见切连科夫暴可理解为一对干涉的电磁记忆跃迁。轨迹端点加速度在横向矢势中产生相反的记忆台阶，使得相应的有限频率辐射在端点加速度标度以下由记忆振幅及临时记忆偏移持续的时间普遍确定。当接近切连科夫方向时，记忆振幅增大而它们在观测者时间上的间隔缩小，直至两个矢势台阶重叠，其发散贡献相互抵消为有限的切连科夫暴。这一视角为利用阿斯凯良效应作为可分辨单个宏观记忆跃迁的场景打开了大门，为与记忆相关的红外物理提供了新的实验舞台。
英文摘要
We show that the familiar Cherenkov burst from a finite superluminal charge track can be understood as a pair of interfering electromagnetic memory transitions. Endpoint accelerations of the track produce opposite memory steps in the transverse vector potential, such that the corresponding finite-frequency radiation is universally fixed, below the endpoint-acceleration-scale, by the memory amplitude and the time for which the temporary memory offset persists. As the Cherenkov direction is approached, the memory amplitudes grow while their separation in observer time shrinks, until the two vector-potential steps overlap and their divergent contributions cancel into a finite Cherenkov burst. This perspective opens the door to using the Askaryan effect as a setting in which individual macroscopic memory transitions may be resolved, providing a new experimental arena for memory-linked infrared physics.
Comments8 pages, 3 figures
