title: Bootstrap tomography of the pulses for quantum control.
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.
authors.affiliation: Ames Laboratory, U.S. DOE, Iowa State University, Ames Iowa 50011, USA.
authors.forename: V V
authors.initials: VV
authors.lastname: Dobrovitski
authors.forename: G
authors.initials: G
authors.lastname: de Lange
authors.forename: D
authors.initials: D
authors.lastname: Ristè
authors.forename: R
authors.initials: R
authors.lastname: Hanson