多光子过程中密度算子之间的距离

Acta Physica Sinica (overseas Edition) Pub Date : 1999-09-20 DOI:10.1088/1004-423X/8/9/004

Zhang Jing-Tao, C. Zhaoyang, Xu Zhi-zhan

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摘要

本文研究了多光子过程中密度算子之间的距离。我们研究了原子、场和总系统的随时间演化态与各自参考态之间的距离，并将它们与原子反转和场的纯度进行了比较，揭示了它们在各种多光子过程中的对应关系。利用双光子过程中的完全量子化布洛赫方程给出了物理解释。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Distance between density operators in multiphoton processes

In this paper we investigate the distance between density operators in multiphoton processes. We study the distances between the time-evolved states of the atom, of the field, and of the total system and their respective reference states, compare them with the atomic inversion as well as the purity of the field, disclose their corresponding relations in various multiphoton processes. The physical interpretations are given by using a fully quantized Bloch equation in the two-photon process.

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Acta Physica Sinica (overseas Edition)

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