Solid-state quantum emitters with manipulable spin-qubits are promising platforms for quantum communication applications. Although such light-matter interfaces could be realized in many systems only a few allow for light emission in the telecom bands necessary for long-distance quantum networks. Here, we propose and implement an optically active solid-state spin-qubit based on a hole confined in a single InAs/GaAs quantum dot grown on an InGaAs metamorphic buffer layer emitting photons in the C-band. We lift the hole spin-degeneracy using an external magnetic field and demonstrate hole injection, initialization, read-out and complete coherent control using picosecond optical pulses. These results showcase a solid-state spin-qubit platform compatible with preexisting optical fiber networks.
Description
Optical charge injection and coherent control of a quantum-dot spin-qubit emitting at telecom wavelengths | Nature Communications
%0 Journal Article
%1 Dusanowski2022
%A Dusanowski, Łukasz
%A Nawrath, Cornelius
%A Portalupi, Simone L.
%A Jetter, Michael
%A Huber, Tobias
%A Klembt, Sebastian
%A Michler, Peter
%A Höfling, Sven
%D 2022
%J Nature Communications
%K ihfg
%N 1
%P 748
%R 10.1038/s41467-022-28328-2
%T Optical charge injection and coherent control of a quantum-dot spin-qubit emitting at telecom wavelengths
%U https://doi.org/10.1038/s41467-022-28328-2
%V 13
%X Solid-state quantum emitters with manipulable spin-qubits are promising platforms for quantum communication applications. Although such light-matter interfaces could be realized in many systems only a few allow for light emission in the telecom bands necessary for long-distance quantum networks. Here, we propose and implement an optically active solid-state spin-qubit based on a hole confined in a single InAs/GaAs quantum dot grown on an InGaAs metamorphic buffer layer emitting photons in the C-band. We lift the hole spin-degeneracy using an external magnetic field and demonstrate hole injection, initialization, read-out and complete coherent control using picosecond optical pulses. These results showcase a solid-state spin-qubit platform compatible with preexisting optical fiber networks.
@article{Dusanowski2022,
abstract = {Solid-state quantum emitters with manipulable spin-qubits are promising platforms for quantum communication applications. Although such light-matter interfaces could be realized in many systems only a few allow for light emission in the telecom bands necessary for long-distance quantum networks. Here, we propose and implement an optically active solid-state spin-qubit based on a hole confined in a single InAs/GaAs quantum dot grown on an InGaAs metamorphic buffer layer emitting photons in the C-band. We lift the hole spin-degeneracy using an external magnetic field and demonstrate hole injection, initialization, read-out and complete coherent control using picosecond optical pulses. These results showcase a solid-state spin-qubit platform compatible with preexisting optical fiber networks.},
added-at = {2022-02-09T21:55:20.000+0100},
author = {Dusanowski, {\L}ukasz and Nawrath, Cornelius and Portalupi, Simone L. and Jetter, Michael and Huber, Tobias and Klembt, Sebastian and Michler, Peter and H{\"o}fling, Sven},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/223ea55bbc5e51a60d7ba4cedf7a5860f/renerehwagen},
day = 08,
description = {Optical charge injection and coherent control of a quantum-dot spin-qubit emitting at telecom wavelengths | Nature Communications},
doi = {10.1038/s41467-022-28328-2},
interhash = {704e3366bb9788f838ba182311dbae1a},
intrahash = {23ea55bbc5e51a60d7ba4cedf7a5860f},
issn = {2041-1723},
journal = {Nature Communications},
keywords = {ihfg},
month = feb,
number = 1,
pages = 748,
timestamp = {2022-02-09T20:55:20.000+0100},
title = {Optical charge injection and coherent control of a quantum-dot spin-qubit emitting at telecom wavelengths},
url = {https://doi.org/10.1038/s41467-022-28328-2},
volume = 13,
year = 2022
}
