Few-photon model of the optical emission of semiconductor quantum dots.

Few-photon model of the optical emission of semiconductor quantum dots.
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半导体量子点光发射的少光子模型

DOI:
10.1103/physrevlett.103.087407
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发表时间:
2009
影响因子:
8.6
通讯作者:
Carmele
Carmele
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Richter;Carmele

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詹尼斯-卡明斯模型为辐射场中的单电子二能级系统提供了一个完善的理论框架。类似的精确可解的半导体光发射体模型,如由许多粒子相互作用支配的量子点,目前还不知道。我们通过广义的团簇展开,即光子-概率团簇展开:在许多体电子系统中研究少光子动力学的可靠方法来访问这些系统。作为第一个应用,我们讨论了真空拉比振荡,并表明它们的振幅决定了量子点中电子的数量。
The Jaynes-Cummings model provides a well established theoretical framework for single electron two level systems in a radiation field. Similar exactly solvable models for semiconductor light emitters such as quantum dots dominated by many particle interactions are not known. We access these systems by a generalized cluster expansion, the photon-probability cluster expansion: a reliable approach for few-photon dynamics in many body electron systems. As a first application, we discuss vacuum Rabi oscillations and show that their amplitude determines the number of electrons in the quantum dot.
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