以 99.4% 吸收效率捕获整形微波光子
量子物理
2014-05-29 v2 超导电性
摘要
我们展示了一种高效率确定性量子接收器，用于将飞行量子比特转换为逻辑量子比特。我们采用超导谐振腔，通过可调耦合器以整形脉冲驱动。对于理想的“时间反演”波形，我们在单微波光子水平测得的吸收保真度和接收器保真度分别为 99.41% 和 97.4%。这些保真度与量子门和测量相当，并超过了确定性量子通信和计算的容错阈值。
引用
@article{arxiv.1311.1180,
title = {Catching Shaped Microwave Photons with 99.4% Absorption Efficiency},
author = {J. Wenner and Yi Yin and Yu Chen and R. Barends and B. Chiaro and E. Jeffrey and J. Kelly and A. Megrant and J. Y. Mutus and C. Neill and P. J. J. O'Malley and P. Roushan and D. Sank and A. Vainsencher and T. C. White and Alexander N. Korotkov and A. N. Cleland and John M. Martinis},
journal= {arXiv preprint arXiv:1311.1180},
year = {2014}
}
备注
Main paper: 5 pages, 4 figures. Supplement: 11 pages, 12 figures. Revised abstract and introduction. Minor changes to Figure 1 and figure captions