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Bootstrap Tomography of the Pulses for Quantum Control

TitleBootstrap Tomography of the Pulses for Quantum Control
Publication TypeJournal Article
Year of Publication2010
AuthorsDobrovitski VV, de Lange G, Riste D, Hanson R
Journal TitlePhysical Review Letters
Volume105
Pages077601
Date Published8/11
ISBN Number0031-9007
Accession NumberISI:000280827200012
Keywordscoherent dynamics, diamond, dot, electron-spin, manipulation, nmr, qubits, single spins, solids
Abstract

Long-time dynamical decoupling and quantum control of qubits require high-precision control pulses. Full characterization (quantum tomography) of imperfect pulses presents a bootstrap problem: tomography requires initial states of a qubit which cannot be prepared without perfect pulses. We present a protocol for pulse error analysis, specifically tailored for a wide range of the single solid-state electron spins. Using a single electron spin of a nitrogen-vacancy center in diamond, we experimentally verify the correctness of the protocol, and demonstrate its usefulness for quantum control tasks.
URL<Go to ISI>://000280827200012
DOI10.1103/Physrevlett.105.077601