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arXiv 1204.0239quant-phphysics.optics
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Kapitza-Dirac效应中的自旋动力学

Spin dynamics in the Kapitza-Dirac effect

Sven Ahrens, Heiko Bauke, Christoph H. Keitel, Carsten Müller

摘要:

研究了高频高强度激光驻波与Kapitza-Dirac散射中电子自旋动力学。基于含时狄拉克方程,我们发展了一个完全相对论性的电子运动量子理论。独特的自旋动力学,拉比振荡和完整的自旋翻转过渡,证明了Kapitza-狄拉克散射涉及三个光子在一个参数制度访问未来的高功率X射线激光源。拉比频率,因此,衍射图案被证明是至关重要的自旋自由度。

英文摘要:

Electron spin dynamics in Kapitza-Dirac scattering from a standing laser wave of high frequency and high intensity is studied. We develop a fully relativistic quantum theory of the electron motion based on the time-dependent Dirac equation. Distinct spin dynamics, with Rabi oscillations and complete spin-flip transitions, is demonstrated for Kapitza-Dirac scattering involving three photons in a parameter regime accessible to future high-power X-ray laser sources. The Rabi frequency and, thus, the diffraction pattern is shown to depend crucially on the spin degree of freedom.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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