Coherent control of a high-orbital hole in a semiconductor quantum dot.

Autor: Yan JY; Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, China., Chen C; Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, China., Zhang XD; Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, China., Wang YT; Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, China., Babin HG; Lehrstuhl für Angewandte Festkörperphysik, Ruhr-Universität Bochum, Bochum, Germany., Wieck AD; Lehrstuhl für Angewandte Festkörperphysik, Ruhr-Universität Bochum, Bochum, Germany., Ludwig A; Lehrstuhl für Angewandte Festkörperphysik, Ruhr-Universität Bochum, Bochum, Germany., Meng Y; School of Precision Instrument and Optoelectronic Engineering, Tianjin University, Tianjin, China.; Key Laboratory of Optoelectronic Information Science and Technology, Ministry of Education, Tianjin, China., Hu X; School of Precision Instrument and Optoelectronic Engineering, Tianjin University, Tianjin, China.; Key Laboratory of Optoelectronic Information Science and Technology, Ministry of Education, Tianjin, China., Duan H; Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, China.; ZJU-UIUC Institute, International Campus, Zhejiang University, Haining, China., Chen W; Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, China.; ZJU-UIUC Institute, International Campus, Zhejiang University, Haining, China., Fang W; College of Optical Science and Engineering, Zhejiang University, Hangzhou, China., Cygorek M; SUPA, Institute of Photonics and Quantum Sciences, Heriot-Watt University, Edinburgh, UK., Lin X; Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, China., Wang DW; Zhejiang Province Key Laboratory of Quantum Technology and Device, School of Physics, Zhejiang University, Hangzhou, China., Jin CY; Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, China.; International Joint Innovation Center, Zhejiang University, Haining, China.; Center for Information Technology Application Innovation, Shaoxing Institute, Zhejiang University, Shaoxing, China., Liu F; Interdisciplinary Center for Quantum Information, State Key Laboratory of Extreme Photonics and Instrumentation, College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, China. feng_liu@zju.edu.cn.; International Joint Innovation Center, Zhejiang University, Haining, China. feng_liu@zju.edu.cn.
Jazyk: angličtina
Zdroj: Nature nanotechnology [Nat Nanotechnol] 2023 Oct; Vol. 18 (10), pp. 1139-1146. Date of Electronic Publication: 2023 Jul 24.
DOI: 10.1038/s41565-023-01442-y
Abstrakt: Coherently driven semiconductor quantum dots are one of the most promising platforms for non-classical light sources and quantum logic gates which form the foundation of photonic quantum technologies. However, to date, coherent manipulation of single charge carriers in quantum dots is limited mainly to their lowest orbital states. Ultrafast coherent control of high-orbital states is obstructed by the demand for tunable terahertz pulses. To break this constraint, we demonstrate an all-optical method to control high-orbital states of a hole via a stimulated Auger process. The coherent nature of the Auger process is proved by Rabi oscillation and Ramsey interference. Harnessing this coherence further enables the investigation of the single-hole relaxation mechanism. A hole relaxation time of 161 ps is observed and attributed to the phonon bottleneck effect. Our work opens new possibilities for understanding the fundamental properties of high-orbital states in quantum emitters and for developing new types of orbital-based quantum photonic devices.
(© 2023. The Author(s), under exclusive licence to Springer Nature Limited.)
Databáze: MEDLINE
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