To refer to this page use:
|Abstract:||We report high-fidelity, quantum non-demolition, single-shot readout of a superconducting transmon qubit using a dc-biased superconducting low-inductance undulatory galvanometer (SLUG) amplifier. The SLUG improves the system signal-to-noise ratio by 6.5 dB in a 20 MHz window compared with a bare high electron mobility transistor amplifier. An optimal cavity drive pulse is chosen using a genetic search algorithm, leading to a maximum combined readout and preparation fidelity of 91.9% with a measurement time of Tmeas = 200 ns. Using post-selection to remove preparation errors caused by heating, we realize a combined preparation and readout fidelity of 94.3%.|
|Electronic Publication Date:||4-Nov-2014|
|Citation:||Liu, Y, Srinivasan, SJ, Hover, D, Zhu, S, McDermott, R, Houck, AA. (2014). High fidelity readout of a transmon qubit using a superconducting low-inductance undulatory galvanometer microwave amplifier. New Journal of Physics, 16 (10.1088/1367-2630/16/11/113008|
|Type of Material:||Journal Article|
|Journal/Proceeding Title:||New Journal of Physics|
|Version:||Final published version. Article is made available in OAR by the publisher's permission or policy.|
Items in OAR@Princeton are protected by copyright, with all rights reserved, unless otherwise indicated.