Photon Assisted Tunneling in Quantum Dots
Photon Assisted Tunneling in Quantum Dots
复制标题
量子点中的光子辅助隧道
DOI：
10.1007/978-94-010-0530-2_3
复制
发表时间：
1999
期刊：
影响因子：
--
通讯作者：
L. Kouwenhoven
中科院分区：
文献类型：
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作者：
W. G. Wiel;T. Oosterkamp;S. D. Franceschi;C. Harmans;L. Kouwenhoven
我们回顾了在微波信号存在下单电子通过单量子点传输的实验。在具有良好分辨的离散能量状态的小点的情况下，应用的高频信号允许涉及光子与微波场交换的非弹性隧道事件。除了主共振外，这些光子辅助隧道（PAT）过程还会产生边带共振。光子吸收也可以通过激发态而不是通过量子点的基态导致隧穿。微波场对量子点的操纵是量子点作为固态量子比特可能应用的重要组成部分，这也是本文的研究动机。
We review experiments on single-electron transport through single quantum dots in the presence of a microwave signal. In the case of a small dot with well-resolved discrete energy states, the applied high-frequency signal allows for inelastic tunnel events that involve the exchange of photons with the microwave field. These photon assisted tunneling (PAT) processes give rise to sideband resonances in addition to the main resonance. Photon absorption can also lead to tunneling via excited states instead of tunneling via the ground state of the quantum dot. The manipulation of quantum dots by a microwave field is an important ingredient for the possible application of quantum dots as solid state quantum bits, which forms a motivation for this review.