Print Email Facebook Twitter Feedback Control of a Solid-State Qubit Using High-Fidelity Projective Measurement Title Feedback Control of a Solid-State Qubit Using High-Fidelity Projective Measurement Author Riste, D. Bultink, C.C. Lehnert, K.W. DiCarlo, L. Faculty Applied Sciences Department QN/Quantum Nanoscience Date 2012-12-10 Abstract We demonstrate feedback control of a superconducting transmon qubit using discrete, projective measurement and conditional coherent driving. Feedback realizes a fast and deterministic qubit reset to a target state with 2.4% error averaged over input superposition states, and allows concatenating experiments more than 10 times faster than by passive initialization. This closed-loop qubit control is necessary for measurement-based protocols such as quantum error correction and teleportation. To reference this document use: http://resolver.tudelft.nl/uuid:76b4612a-0725-4d97-bf20-c58bcb3b01ea DOI https://doi.org/10.1103/PhysRevLett.109.240502 Publisher American Physical Society ISSN 0031-9007 Source http://link.aps.org/doi/10.1103/PhysRevLett.109.240502 Source Physical Review Letters, 109 (24), 2012 Part of collection Institutional Repository Document type journal article Rights © 2012 American Physical Society Files PDF Riste_2012.pdf 435.94 KB Close viewer /islandora/object/uuid:76b4612a-0725-4d97-bf20-c58bcb3b01ea/datastream/OBJ/view