Individual control and readout of qubits in a sub-diffraction volume
Name
s41534-019-0154-y.pdf
Description
Published version
Size
1.48 MB
Format
Adobe PDF
Checksum (MD5)
fe7d216d32f2724303433c6c2161d353
Author(s)
Bersin, Eric Alexander
Walsh, Michael E
Mouradian, Sara L
Trusheim, Matthew E
Schroder, Tim
Englund, Dirk R.
Date Issued
May 2019
Journal
npj Quantum Information
Publisher
Springer Science and Business Media LLC
Citation
Bersin, Eric et al. “Individual control and readout of qubits in a sub-diffraction volume.” npj Quantum Information, 5, 1 (May 2019): 38 © 2019 The Author(s)
Version
Final published version
Abstract
Medium-scale ensembles of coupled qubits offer a platform for near-term quantum technologies as well as studies of many-body physics. A central challenge for coherent control of such systems is the ability to measure individual quantum states without disturbing nearby qubits. Here, we demonstrate the measurement of individual qubit states in a sub-diffraction cluster by selectively exciting spectrally distinguishable nitrogen vacancy centers. We perform super-resolution localization of single centers with nanometer spatial resolution, as well as individual control and readout of spin populations. These measurements indicate a readout-induced crosstalk on non-addressed qubits below 4 × 10−2. This approach opens the door to high-speed control and measurement of qubit registers in mesoscopic spin clusters, with applications ranging from entanglement-enhanced sensors to error-corrected qubit registers to multiplexed quantum repeater nodes.
MIT Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1038/S41534-019-0154-Y
