论文标题
由激光合成的自由电子波包驱动的电子原子碰撞中的纠缠光子对生成的量子控制
Quantum control of entangled photon-pair generation in electron-atom collisions driven by laser-synthesized free-electron wave packets
论文作者
论文摘要
我们建议使用激光合成的自由电子物质波扩展相干控制。与利用光学相干来指导物质波的动力学的相干控制方案相反，我们分析了相反的情况，并研究了由激光划定的相干自由电子物质波驱动的量子光发射的控制。我们将此概念应用于电子原子碰撞中纠缠的光子对发射的控制，其中事件电子波包与目标原子$ b $相撞，是由erterteformic ressontric ressontric ressontric ressontric ressontric ressontrictric ressontimentimentimentimentimentimement ressontric ressontimentimentimentimentimentigation ressontric ressontimentimentigation ressontric ressontrictiment ressontrictric intermational-a $ a $ a $ a $ a $。每个电离途径都会导致电子波数据包在连续体的时间演化过程中相干干扰。它们的相互连贯性可以通过调整电离场的频率成分的相对相位或时间延迟来控制，从而导致干扰途径。我们报告靶原子衰减后，在与合成电子波碰撞触发的非弹性激发后，辐射光效应发射中纠缠的光子对生成的相干控制。
We propose an extension of coherent control using laser-synthesized free-electron matter waves. In contrast to coherent control schemes exploiting optical coherences to steer the dynamics of matter waves, we analyze the opposite and investigate the control of quantum light emission driven by laser-sculpted coherent free-electron matter waves. We apply this concept to the control of entangled photon-pair emission in electron-atom collisions, in which the incident electron wave packet, colliding with a target atom $B$, is engineered by interferometric resonantly-enhanced multiphoton ionization of a parent atom $A$. Each ionization pathway leads to electron wave packets that coherently interfere during temporal evolution in the continuum. Their mutual coherence can be controlled by adjusting the relative phases or time delays of the frequency components of the ionizing field contributing to the interfering pathways. We report coherent control of entangled photon-pair generation in radiative photo-cascade emission upon decay of the target atom after inelastic excitation triggered by the collision with the synthesized electron wave packet.
