We demonstrate a high efficiency deterministic quantum receiver to convert flying qubits to logic qubits. We employ a superconducting resonator, which is driven with a shaped pulse through an adjustable coupler. For the ideal "time reversed" shape, we measure absorption and receiver fidelities at the single microwave photon level of, respectively, 99.41% and 97.4%. These fidelities are comparable with gates and measurement and exceed the deterministic quantum communication and computation fault tolerant thresholds.
@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}
}
Comments
Main paper: 5 pages, 4 figures. Supplement: 11 pages, 12 figures. Revised abstract and introduction. Minor changes to Figure 1 and figure captions