%0 Journal Article %1 dusanowski2022optical %A Dusanowski, Lukasz %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 Nat. Commun %K c d %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{dusanowski2022optical, 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 = {2023-11-22T10:02:14.000+0100}, author = {Dusanowski, Lukasz and Nawrath, Cornelius and Portalupi, Simone L. and Jetter, Michael and Huber, Tobias and Klembt, Sebastian and Michler, Peter and Höfling, Sven}, biburl = {https://www.bibsonomy.org/bibtex/296bd45e0f0968947914d4a1e914b3d02/ctqmat}, day = 07, doi = {10.1038/s41467-022-28328-2}, interhash = {bd61ddf1b003449c97f1900f4a88fbe2}, intrahash = {96bd45e0f0968947914d4a1e914b3d02}, issn = {20411723}, journal = {Nat. Commun}, keywords = {c d}, month = {02}, number = 1, pages = {748--}, refid = {Dusanowski2022}, timestamp = {2023-11-24T11:55:44.000+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 }