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首页> 外文会议>Quantum dots and nanostructures: synthesis, characterization, and modeling IX. >Reducing dephasing in coupled quantum dot-cavity systems by engineering the carrier wavefunctions
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Reducing dephasing in coupled quantum dot-cavity systems by engineering the carrier wavefunctions

机译：通过设计载波函数减少耦合量子点腔系统中的相移

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摘要

We demonstrate theoretically how photon-assisted dephasing by the electron-phonon interaction in a coupled cavity-quantum dot system can be significantly reduced for specific QD-cavity detunings. Our starting point is a recently published theory,1 which considers longitudinal acoustic phonons, described by a non-Markovian model, interacting with a coupled quantum dot-cavity system. The reduction of phonon-induced dephasing is obtained by placing the cavity-quantum dot system inside an infinite slab, assuming spherical electronic wavefunctions. Based on our calculations, we expect this to have important implications in single-photon sources, allowing the indistinguishability of the photons to be improved.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
机译：我们从理论上证明了如何在特定的QD腔失谐中显着减少耦合腔-量子点系统中电子-声子相互作用引起的光子辅助移相。我们的出发点是最近发表的理论，[1]考虑了由非马尔可夫模型描述的纵向声子与耦合量子点腔系统的相互作用。假设球面电子波函数通过将空腔量子点系统置于无限大的平板内部，可以减少声子引起的相移。根据我们的计算，我们希望这在单光子源中具有重要意义，从而可以改善光子的不可分辨性。©（2012）COPYRIGHT光电仪器工程师协会（SPIE）。摘要的下载仅允许个人使用。

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