论文标题
原子中阈值电离过程之后的轻度纠缠
Light-matter entanglement after above-threshold ionization processes in atoms
论文作者
论文摘要
轻质纠缠在量子信息科学的许多应用中起着基本作用。因此，找到可以观察到的过程是一项重要任务。在这里，我们通过理论上研究了阈值电离（ATI）过程中产生的光与电子之间的纠缠与电子之间的纠缠来解决此问题。该研究基于ATI过程对系统的量子光态的反作用，及其对发射光电子的动能和方向的依赖性。考虑到过程的动态，我们证明了混合纠缠状态的创建。已经根据纠缠的熵进行了纠缠数量。此外，我们使用驾驶场模式的Wigner函数来激励纠缠表征在考虑相反方向传播的电子时。
Light-matter entanglement plays a fundamental role in many applications of quantum information science. Thus, finding processes where it can be observed is an important task. Here, we address this matter by theoretically investigating the entanglement between light and electrons generated in above-threshold ionization (ATI) process. The study is based on the back-action of the ATI process on the quantum optical state of the system, and its dependence on the kinetic energy and direction of the emitted photoelectrons. Taking into account the dynamics of the process, we demonstrate the creation of hybrid entangled states. The amount of entanglement has been studied in terms of the entropy of entanglement. Additionally, we use the Wigner function of the driving field mode to motivate the entanglement characterization when considering electrons propagating in opposite directions.
