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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Quantum sources in external fields
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Quantum sources in external fields

机译：外部领域的量子源

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摘要

The Schrodinger equation is homogeneous reflecting the linearity of quantum mechanics. However, we show that adding a source term provides a very convenient and flexible tool for the description of processes where an electron is generated by detachment or by ionization and subsequently propagates in the presence of an external field, which may include the detaching or the ionizing field. The source term provides the mathematical formulation of a separation of the process into two steps, detachment and subsequent propagation. We present the source formalism and illustrate it by various examples: photodetachment in the presence of a uniform electric field, the conductivity of an ideal wire, scanning tunneling microscopy, the velocity map of an electron liberated from a bound state in an atom or ion by an intense laser field and its features such as the carpet pattern, and a novel realization of the time-honored double-slit experiment by means of temporal slits afforded by an atom in a few-cycle laser pulse. All examples compare the theoretical source formulation with experimental data.
机译：Schrodinger方程是均匀反映量子力学的线性。但是，我们表明，添加源期限为通过分离或通过电离产生电子产生的过程的描述提供了非常方便和灵活的工具，并且随后在外部场的存在下传播，其可以包括分离或电离场地。源期限提供了将过程的分离分为两个步骤，分离和随后的传播的数学制定。我们介绍了源形式主义，并通过各种示例说明了它：在存在均匀的电场的情况下，理想线的导电性，扫描隧穿显微镜，从原子或离子中的结合状态释放的电子的速度图一种强烈的激光场及其诸如地毯图案的特征，以及通过在几个循环激光脉冲中由原子提供的颞型狭缝的时间狭缝的新颖性实现。所有示例将理论源配方与实验数据进行比较。

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