Rydberg wave packets and half-cycle electromagnetic pulses.

机译：里德伯格波包和半周期电磁脉冲。

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This dissertation summarizes an examination of the dynamics of atomic Rydberg wave packets with coherent pulses of THz electromagnetic radiation consisting of less than a single cycle of the electric field. The bulk of the energy is contained in just a half-cycle. Previous work (1, 10) has shown how these half-cycle pulses can be used to ionize the highly excited states of an atom, and that a classical view of electronic motion in the atom explains the ionization mechanism. To further probe the boundary between classical trajectories and quantum mechanics, in this work we investigate dynamical combinations of Rydberg states, or Rydberg wave packets, and how they ionize under the influence of a half-cycle electromagnetic pulse. With time-domain techniques we are able to extract the dynamics of the wave packet from the ionization rate. We then observe wave packet motion in both the electronic radial and angular coordinates, and can view it directly with the half-cycle pulse anywhere on its trajectory. This is the unique feature of half-cycle pulse ionization. Semiclassical ideas of ionization in conjunction with quantum descriptions of the wave packet, are capable of reproducing the main trends in our data, and in the absence of a rigorous model we rely on these. Experiments of this nature provide examples of the ongoing effort to use the coherent properties of radiation to control electronic motion in an atom, as well as to probe the boundaries between quantum and classical mechanics.

机译：本文总结了对原子里德堡波包动力学的研究，该包具有太赫兹电磁辐射的相干脉冲，由少于一个电场周期构成。大部分能量仅包含一个半周期。先前的工作（1，10）显示了如何使用这些半周期脉冲来电离原子的高激发态，并且原子中电子运动的经典视图解释了电离机理。为了进一步探究经典轨迹与量子力学之间的边界，在这项工作中，我们研究了里德堡态或里德堡波包的动力学组合，以及它们在半周期电磁脉冲的影响下如何电离。利用时域技术，我们能够从电离速率中提取出波包的动态。然后，我们在电子径向坐标和角度坐标中都观察到波包运动，并可以在其轨迹上的任何位置用半周期脉冲直接查看它。这是半周期脉冲电离的独特功能。电离的半经典思想与波包的量子描述相结合，能够再现我们数据的主要趋势，并且在缺乏严格模型的情况下，我们依赖于这些。这种性质的实验提供了使用辐射的相干特性来控制原子中的电子运动以及探测量子力学和经典力学之间边界的正在进行的工作的示例。

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作者
Raman, Chandra Shekar.;
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作者单位

University of Michigan.;

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授予单位 University of Michigan.;
学科 Physics General.;Physics Optics.;Physics Atomic.
学位 Ph.D.
年度 1997
页码 94 p.
总页数 94
原文格式 PDF
正文语种 eng
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专利

1. Localization of a half-cycle pulse-induced Rydberg wave packet in phase space: An analytical description [J] . Parzynski R, Kopyciuk T, Sobczak A Physics Letters, A . 2006,第6期

机译：半周期脉冲诱导的里德堡波包在相空间中的定位：一种分析描述
2. Observing angular precession of a Rydberg wave packet due to spin-orbit coupling by orthogonally polarized weak half-cycle pulses [J] . Wen H, Pisharody SN, Murray JM, Physical Review, A. Atomic, molecular, and optical physics . 2006,第5期

机译：通过正交极化的弱半周期脉冲观察由于自旋轨道耦合而引起的里德堡波包的角进动
3. Information hiding and retrieval in Rydberg wave packets using half-cycle pulses [J] . Murray JM, Pisharody SN, Wen H, Physical Review, A. Atomic, molecular, and optical physics . 2006,第4aPta2期

机译：使用半周期脉冲在Rydberg波包中进行信息隐藏和检索
4. Flipped-state identification in a Rydberg wave-packet using a terahertz half-cycle pulse [C] . Jaewood Ahn, Hutchinson, D.N., . 2001

机译：使用太赫兹半周期脉冲的里德伯格波包中的翻转状态识别
5. Creating Rydberg electron wave packets using terahertz pulses. [D] . Bromage, Jake. 1999

机译：使用太赫兹脉冲创建Rydberg电子波包。
6. Coupled wave-packets for non-adiabatic molecular dynamics: a generalization of Gaussian wave-packet dynamics to multiple potential energy surfaces [O] . Alexander White, Sergei Tretiak, Dmitry Mozyrsky 2016

机译：非绝热分子动力学的耦合波包：高斯波包动力学到多个势能面的推广
7. Ionization of Rydberg Wave Packets by Subpicosecond, Half-Cycle Electromagnetic Pulses [O] . C. Raman, C. W. S. Conover, C. I. Sukenik, 1996

机译：rydberg波包的电离通过亚磷二，半循环电磁脉冲
8. Ultrafast Laser Studies of Molecular Rydberg Wave Packets [R] . Leone, S. R. , Gilb, S. , Nestorov, V. , 2005

机译：分子里德堡波包的超快激光研究

Rydberg wave packets and half-cycle electromagnetic pulses.

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