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Mixed states in Rabi waves and quantum nanoantennas

机译：拉比波和量子纳米天线中的混合态

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摘要

The mixed states of Rabi waves in a one-dimensional chain of two-level quantum dots (QDs) with tunnel coupling between neighbor QDs are theoretically considered. The propagation of Rabi waves is described by a 2 × 2 statistical operator depending on two spatial and one temporal variables. For a statistical operator the generalized Bloch equations are derived. The eigenmodes of the statistical operator are considered, the general solution of the initial problem is obtained, and the frequency spectrum of the induced current is investigated. The high-frequency part of the spectrum corresponds to a Mollow triplet, but is distinct from the last one as it is the continuous spectral band located on both sides of the transition frequency. The low-frequency part is caused by tunnel current and includes a dc-component and continuous ac-band in the vicinity of the Rabi oscillation . frequency. The application of Rabi waves to the electrically controlled quantum nanoantennas of terahertz range is considered.
机译：从理论上考虑了两级量子点（QD）一维链中具有隧道耦合的Rabi波的混合态。拉比波的传播由2×2统计运算符描述，取决于两个空间和一个时间变量。对于统计算子，可以导出广义的Bloch方程。考虑统计算子的本征模，得到初始问题的一般解，并研究了感应电流的频谱。频谱的高频部分对应于Mollow三重态，但与最后一个截然不同，因为它是位于跃迁频率两侧的连续频谱带。低频部分是由隧道电流引起的，在Rabi振荡附近包括直流分量和连续的ac波段。频率。考虑了拉比波在太赫兹范围的电控量子纳米天线上的应用。

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  • 来源
    《Physical review》 |2012年第24期|p.245134.1-245134.10|共10页
  • 作者

    G. Ya. Slepyan; Y. D. Yerchak; S. A. Maksimenko; A. Hoffmann; F. G. Bass;

  • 作者单位

    Institute for Nuclear Problems, Belarus State University, Bobruiskaya 11, 220050 Minsk, Belarus;

    Institute for Nuclear Problems, Belarus State University, Bobruiskaya 11, 220050 Minsk, Belarus;

    Institute for Nuclear Problems, Belarus State University, Bobruiskaya 11, 220050 Minsk, Belarus;

    Institut fuer Festkoerperphysik, Technische Universitaet Berlin, Hardenbergstrasse 36, D-10623 Berlin, Germany;

    Department of Physics, Bar-Ilan University, IL-52900 Ramat-Gan, Israel;

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  • 正文语种 eng
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  • 关键词

    quantum dots; excited states and pairing interactions in model systems; tunneling; quantum dots;

    机译：量子点;模型系统中的激发态和配对相互作用;隧道量子点;

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