Individual control and readout of qubits in a sub-diffraction volume. Bersin, E., Walsh, M., Mouradian, S. L., Trusheim, M. E., Schröder, T., & Englund, D. npj Quantum Information, 5(1):1–6, May, 2019. Number: 1 Publisher: Nature Publishing Group![Individual control and readout of qubits in a sub-diffraction volume [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex 4 downloads 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.
@article{bersin_individual_2019,
title = {Individual control and readout of qubits in a sub-diffraction volume},
volume = {5},
copyright = {2019 The Author(s)},
issn = {2056-6387},
url = {https://www.nature.com/articles/s41534-019-0154-y},
doi = {10.1038/s41534-019-0154-y},
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.},
language = {en},
number = {1},
urldate = {2022-08-03},
journal = {npj Quantum Information},
author = {Bersin, Eric and Walsh, Michael and Mouradian, Sara L. and Trusheim, Matthew E. and Schröder, Tim and Englund, Dirk},
month = may,
year = {2019},
note = {Number: 1
Publisher: Nature Publishing Group},
keywords = {Atom optics, Quantum information, Quantum optics, Single photons and quantum effects, Sub-wavelength optics},
pages = {1--6},
}
Downloads: 4
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